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Meet the Team

Paolo Diaz- Club Director

Paolo grew up in Aurora, Colorado after his family moved from the Philippines when he was just five. As a chubby boy with cowlick, Paolo didn't even know what lacrosse was and only became involved after going to some professional games and more so when his son started playing for the Commerce City Tigers, which played through CARA. Even before Bison Lacrosse Club was formed, Paolo's love for the game grew where his goal was to grow the sport in Commerce City, as there were no clubs in the northeast metro area. Paolo's goal is to provide kids and the community at-large with the opportunity to learn, play, and love the game of lacrosse.

Mindy Diaz- Club Director

Mindy has been a fan of lacrosse since her kids began playing 8 years ago. As a game day chauffer, cheerleader and snack mom for several years, she has added some lacrosse knowledge to her background. Mindy has been involved with Bison Lacrosse through volunteering in the past and has now taken on a bigger role as one of the club directors. Bison Lacrosse can benefit from her background in education and business. 

Bryon Guyer- Coach

Bryon has been coaching youth sports in the Commerce City area for the last 11 years and lacrosse for the last 7 years. Raising 2 young athletes in the community has granted him the opportunity to see youth athletics from just about every angle. He grew up playing sports at the Commerce City Recreation himself, usually on a team his father coached, and later working for the city as an official. Teaching character development and accountability through youth athletics has become a family tradition for the Guyers, one that Bryon has been proud to carry on as a member of the Bison Lacrosse family! He also enjoys serving his community as director and coach for local CCYA Girls Softball. 

Brett Fielder- Coach

Coach Brett is a native of Colorado, married and has 3 boys.  His love and passion for lacrosse started when his older two sons started playing at the ages of 9 and 11.  He has coached several different sports since the mid 90’s (from youth sports, competitive teams & High School).  Brett is very passionate about coaching and he feels truly blessed to have been involved with some wonderful programs. Through coaching Brett hopes to pass along the knowledge he gained from his involvement as a student, player and a coach.  Brett enjoys seeing young athletes carry out something positive that he has taught them whether it is on or off the field.  “It truly leaves me amazed and awestruck when these moments happen”.

Brandon Davis- Coach

Brandon Davis has been coaching and playing lacrosse for the better half of 18 years from club teams to more traditional school teams as a defensive long pole. His Grandfather Bob Davis, who has been playing since 1959, introduced him to what would be his new addiction. He has a son and daughter that he cannot wait to share the game with when they are older. Originally from California, Brandon found his way to Colorado and was connected with the Bison Lacrosse club to share his passion with the local young athletes. Giving the opportunity for all skill levels to grow and learn with each other is why he continues his work and hopes to be with Bison Lacrosse for a long time to come.  

Brandon Garcia- Coach

Brandon is a  5th generation Coloradoan and has been an athlete and/or coach nearly his entire life. His love for life comes from his love for his wife and kiddos. He's currently the owner and Head Coach at CrossFit E.L.M. in Thornton where he's been coaching health, weight loss, and performance for over a decade. Brandon loves bringing his experience and general expertise on sports health and performance to these young players and loves watching them grow as athletes and strong young men and women.

Kenneth Tatman- Coach

Ken has always loved watching and playing sports. He was introduced to the lacrosse world in Washington two years ago when his son started playing. When he and his wife Adrienne, daughter Sky, and son Mason moved back to Colorado, he was looking continue the sport and found the Bison Lacrosse Club. Since then, Ken became a coach and also plays the sport with other Bison dads. Easy to say that the Tatman family are now HUGE fans of lacrosse!

Cameron Lowrimore- Coach

Cameron Lowrimore is a Physical Education teacher going on 6 years.  His wife (Vanessa) and two children (Landon and Everly) are back in Colorado after a 7 year stint in their home state of New Mexico.  They love the outdoors and can’t get enough of that Colorado snow! He enjoys fitness, coffee, and almost any sport. Lacrosse has always been an interest but never an option until finding Bison a little over a year ago.  could not be happier to be a part of The Herd and looking forward to a fantastic season! 

Colin Spotts- Coach

Coach Colin has been a part of the lacrosse community since he was in the 8th grade. He started playing for the Northglenn Recreation team in middle school, and played for 4 years after that with the Prairie View High School Thunderhawks team. He also played a few short seasons with the Colorado School of Mines Club team while he was in college. Colin loves being around the game in any way possible, be it coaching, playing, or watching any level. He is always looking for ways to help younger players improve, and is hoping to pass along the leadership, responsibility, and love for the sport that he picked up while playing.


John Johnson- Coach

John is a Colorado native and a local Commerce City resident along with his family for the past 11 years. 

He has 2 sons and 1 daughter. His sons have been playing with Bison Lacrosse Club for the pass 3 years and his daughter faithfully cheers them on at practices and games! Coach John helped coach the 8U team this past fall. His love for lacrosse started years ago watching the Colorado Mammoth, but really took off when his boys became interested in lacrosse and became part of the Bison Herd. Coach John looks to highlight young athletes' natural athletic talents and to encourage them to push to develop new skills. Coach John is all about team work "be the Herd", positive attitudes, "Show up with a positive attitude and you will see positive results", and respect "Respect is important at every level Respect yourself, Respect your team, Respect the game."


Elijah Diaz- Coach

Elijah Diaz has been playing lacrosse since the age of 5. He loves the game and enjoys everything about lacrosse starting as an attack player and now moving to be a goalie. Elijah owns a lacrosse head stringing and dying business called Bison Lax Strings as a teen and is planning to continue his love for lacrosse as time goes on. He loves helping people with lacrosse and is always looking forward to the next season.

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Christina Cimino- Coach

Coach Christina is a native of Fairfax Station, VA. She moved here to Colorado in 2019 and currently resides in Northglenn Colorado where she serves on the DISE Board for the city. Christina started playing recreational sports at age 5 and started playing travel soccer and at age 9 in the east coast. She was introduced to lacrosse and field hockey when she was in sixth grade. She excelled in field hockey, won multiple awards, and played in the Virginia State Commonwealth games. She played field hockey at Longwood University where she had a full division one field hockey scholarship. Christina has previously coached at the high school level. She is a wealth of knowledge when it comes to goalkeeping, because that was the position she mainly played throughout her life, and she’s very passionate about teaching the craft. She preaches foot speed, agility, and proper mindset nutrition when it comes to sports. Recently, in 2020 she was a member of the Mile High Blaze, women’s semi professional football team here in Colorado where she met her wife Jacqueline. Christina is the proud mother of an EMT Justin who occasionally plays for the Gray Herd, and stepmother to Elias “Silver”, who also plays for the Bison lacrosse program. When she is not coaching, she is obsessed with anything Halloween and horror, and absolutely loves seeing Broadway plays, and traveling.


Dan Wienke- Coach

Dan has been around athletics since a young age. He graduated college with a degree in Athletic Training. Now as a coach, it really has come full circle for him. Dan believes in the power of positivity; driven by Positive Mental Attitude (we live by great effort, great attitude, great heart). Dan became affiliated with lacrosse a few years ago, as his stepson Simon joined the Herd. Dan loves to spend time with his family (wife, stepson, and 2 dogs) whether it is at home, on a hike, camping, or skiing/snowboarding in the mountains. 


Ryan Specht- Coach

Ryan started lacrosse in high school at Eagle Crest High in Aurora and then continued to play club in college at the University of Northern Colorado 20 years ago.  Since then, he has been a firefighter for 22 years, married his beautiful wife Amy, and had two kids Zach and Lexi.  When Zach started to play it reminded him how much he loves this game and he has loved helping coach for the first couple of years. He is now taking on a head coach role and looks forward to the fun and challenges it will offer. He tries to style his coaching to be fun and teach the love of the game that he has.  He also tries to focus on the process and effort and how that creates success.

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Mike Voss- Coach

Mike was born in Silver Spring, MD and played lacrosse from 3rd grade all the way through college. He played D1 lacrosse for Mount St. Mary’s and played Varsity all 4 years of high school. He played defense throughout his lacrosse career and was defensive captain sophomore, junior, and senior year. He is looking forward to joining the grey herd as well.
Mike and his wife have been watching their sons Aidan and Brantley play for 3 years now and have loved watching them grow into the lacrosse players they are today. He was more than happy to volunteer to help their team when asked this past fall. The Bison Lax Club has reignited his love for the sport and is giving him the ability to give back to his boys and the community by teaching young players who are starting lacrosse.


Nate Starck- Coach

Nate is a Colorado Native whose passion for sports began at a young age, and competitive spirit was engrained in him by his two older brothers. Nate’s lacrosse journey began in 2022 as a “Lacrosse Dad” when his son attended a camp while exploring options for spring team sports. Having been around athletics most of his life, Nate’s interest in lacrosse grew as he followed the success of the DU Pioneers and Colorado Mammoth. The sport became ingrained into their family life after they became members of ‘The Herd’.

Nate has coached football and basketball for the past few years, and he is excited to assist in the growth and skill development of these young athletes.

Nate lives in Brighton with his amazing wife Jennifer, daughter Hadley and son Keegan.

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