Staff

Mark Sheehan |

Mark Sheehan

Mark has trained extensively with former MLB pitcher and pitching coach Dr. Tom House founder of the National Pitching Association (NPA) and Rod Dedeaux Research Baseball Institute (RDRBI) at USC. Mark was appointed by Coach House as the National Director of the NPA in 2015 and served in that role through 2017 before branching out on his own with Evolution Athletics Baseball.

The Collegiate Baseball News awarded Sheehan the 2014 Teaching Professional of the Year Award in Orlando at the ABCA Annual Convention.

Sheehan has teamed with the Institute of Sports Medicine Department at Ann & Robert H. Lurie Chicago Children's Hospital and Midwest Orthopedics to provide science-based instruction and rehabilitation for their pitching clients.

Additionally, Sheehan has coached for the Great Lakes Region with USA Baseball NTIS (National Team Identification Series) program as well as for Caliendo International Sports, where he coaches 15U-17U teams on International trips.

Mark currently splits his instruction time between Evolution Athletics in the Chicago suburb of Naperville and Evolution Athletics in northern California.

Coach Sheehan is one of the most highly respected and sought-after coaches in baseball with a vast amount of experience training pitchers from little league baseball all the way up to MLB players as well tutored a number of MLB and college pitching coaches in addition to consulting with 4 MLB teams in recent year.

Tomas Michelson |

Tomas Michelson

Draft by the Tampa Bay Rays in the 29th round of the 2014 MLB June Amateur Draft from the University of Illinois-Chicago. 


Enjoys long walks on short piers!

Brad Unger |

Brad Unger

Regional instructor at Evolution Athletics.

Head coach at Waubonsee Community College (5th season)

Assistant coach with the DuPage Pistol Shrimp, Prospect League

Assistant Regional Director for the Great Lakes Region with USA Baseball in their NTIS (National Team Identification Series)

Toronto Blue Jays scout

Tom Page |

Tom Page

Known for catching fish that are "this big"!

Lori Hess |

Lori Hess

Lori blends over 20 years of experience and knowledge in the health and fitness fields to lead the movement and recovery component at Evolution Athletics Naperville location.  She is a licensed massage therapist, personal trainer, corrective exercises specialist, yoga and pilates instructor, certified integrative nutrition health coach, and a mother of two boys.  Outside of baseball, her former and current clients consist of surfers while living in Hawaii, dancers, fitness and bodybuilding competitors, cross country runners, football players, and Ironman athletes.

In addition to being the recovery practitioner, her approach to nutrition coaching and teaching yoga and pilates principles to players gives Evolution Athletics an integrative edge in the industry.

Being the only female on board, Lori can hold her own, loves a strong cup of coffee with coconut oil, and cannot live without a good manicure.

John Jakiemiec |

John Jakiemiec

Coach Jakiemiec is a hitting and pitching instructor as well as a Certified Personal Trainer with a Corrective Exercise specialty designation.  He has coached high school and travel baseball for several years and is one of the founders of the Marin Sports Academy ("MSA"), a non-profit organization that provides youth opportunities to participate in sports through camps, clinics, training and competitive team play.  MSA is best known for its Bombers Baseball Club, one of the top travel ball organizations in Northern California.

John played multiple high school sports in Michigan, before going on to play college football for Dartmouth Colleg.  He played one year of JV baseball in college before coming to the realization that football would be his focus.  This realization might have had something to do with the quality of ballplayer Dartmouth was bringing during this time, which included Mike Remlinger (Giants #1 pick in 1987), Brad Ausmus, and Mark Johnson.  Jakiemiec remains friends with Mike, Brad and Mark.

John credits his experience working with Tom House as the foundation for his pitching instruction, while his hitting model is derived in part from the works of Tom Robson, Coop DeRenne, and of course, Ted Williams!

Coach Jakiemiec is head coach and co-general manager of the DuPage Pistol Shrimp, summer collegiate wood bat team that plays in the elite Prospect League.

Ken Miller |

Ken Miller

Ken has been in the fitness and sports performance fields for over 20 years.  Having spent a bulk of his career in the health club industry from personal trainer to educator, he has influenced the careers and educational development of hundreds of personal trainers and performance coaches.  He is also a NASM Master Instructor, conference presenter, a Movement Specialist and Strength Coach with Evolution Athletics and owner of the Training Station in Alameda, California.


Anthony DiSerio |

Anthony DiSerio

Anthony, who just graduated from Ball State University, is one of the newest additions to the Evolution Athletics coaching staff. He has many years of travel as well as collegiate baseball experience at multiple positions. He also has a couple years of coaching under his belt at the high school travel baseball level. Anthony brings knowledge of the game from many different angles. His energy and enthusiasm for the game is unmatched!


Alex DiSerio |

Alex DiSerio


With completing his bachelor's degree in Exercise Science at Illinois State University, Alex is working towards obtaining his master’s degree in Exercise Physiology also at Illinois State University. Alex will also be completing his Certified Strength and Conditioning Specialist (CSCS) through the National Strength and Conditioning Association (NSCA_ certification over the Spring of 2020). Upon completion of the graduate program, Alex looks to enter the collegiate strength and conditioning field as a strength and conditioning coach at a university.

Alex has played for a number of different travel baseball organizations from all over the Northwest suburbs as a 2B/SS. As a starter all four years, Alex has earned a number of awards during his high school career. Alex is currently playing in his final year with the Illinois State club baseball team as their starting shortstop that competes in the National Club Baseball Association-Great Lakes South Division.

Having previous experience coaching experience, Alex looks forward to working with the players to not only develop their skills for the next level, but also help each player develop respect, integrity, leadership, and team work on and off the field.



Nico Minerva |

Nico Minerva

The Evolution Athletics are excited to add first year coach, Nico Minerva to the staff. Nico has over 10 years playing experience as well as 3 years of coaching experience at both the youth and high school level. He has a decorated playing career at multiple positions including first base and second base. Nico brings a high energy personality that will help develop all EA athletes.


Justyn Friday |

Justyn Friday




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