
About Us
Baseball Concepts is based in Zeeland, Michigan and exists to provide the highest level of baseball training in West Michigan. Owned by current assistant Hope College Coach, Devin Schaefers, Baseball Concepts is focused on the cutting edge of baseball technology (Rapsodo, HitTrax, data collection) and research to keep up to date with the modern game. The coaching staff are all former college and professional players who all care deeply about our players reaching their goals.
Our Staff
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Devin
As the Owner of Baseball Concepts, Devin will be working with our hitters and catchers in 4-man workouts on Mondays. Coach Schaefers is a former player and now current Assistant Baseball Coach for Hope College. Devin is an infielder from Southern California making only 5 errors in 281 total chances during his time in college. His 15 years of experience behind the dish (coached by a former member of the Houston Astros pitching staff alongside Nolan Ryan) allows him to provide great pitching instruction too. Devin has received several MIAA awards and accolades in his career, including 1st Team MIAA All-Conference member. Devin has a ton of experience working with youth players and is great at relating with kids!
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Nate Wargolet
Nate Wargolet was a hard throwing relief/closer in his career at Kalamazoo Valley Community College and Grand Valley State University. He is the current Pitching Coach at Hope College. He earned multiple wins and saves while recording a no-hitter his sophomore season. Coach "Wargy" creates a fun atmosphere for players and has a high level of pitching knowledge. With 5 year of coaching experience he works with hitters, infielders and pitchers of all ages.
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Nate Logan
GVSU Alumni Nate Logan hails from South Lyon, Michigan. Coach Nate was a power hitting corner outfielder and first baseman for the Lakers, and over his career he slugged 20 home runs, batted in an impressive 147 runs, all while maintaining a career batting average over .300 and eclipsing the 200 career hit mark. Coach Nate was a two-time All-GLIAC performer, a first team All-Region selection, and was selected as an Honorable Mention for the All-America team in 2022. He also currently holds the career doubles record for GVSU.
Nate was a staple in the Lakers offense over his 5-year career in Allendale, and he will now be the same for Baseball Concepts as a hitting instructor! Nate is great
with players of all ages and specializes in offensive instruction as well as outfield/1B defensive work. -
Kayla
Kayla is a former collegiate softball player who played at Alma College! She is now the current varsity softball coach at Zeeland West high school and previously coached at Allendale high school. Kayla also coaches one of the premier travel softball teams in the midwest and consistenly helps players reach the next level after high school! Kayla specializes in hitting training and also provides pitching and defensive instruction!
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Jennaka Bultman
Jennaka Bultman is a former two-way player at Hope College. She has been pitching since the age of 10 and continues to do so for the Hope Flying Dutch and has experience as both a starter and reliever. Jennaka also played first base and was a regular hitter in the lineup. Before Hope softball, she played for the Kansas City Peppers softball organization. Jennaka enjoys working with young players and is excited about helping develop them and get them to the next level!
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Matt
Matt is the Director of Baseball Operations at Baseball Concepts and a former pitcher at Hope College where he played under Stu Fritz and honed his pitching skills. Matt spent the past several years working as an Athletic Director and pitching trainer in the Indianapolis area. He has trained several players that are now competing at the collegiate level. Matt is the Lead Pitching Instructor for BC and enjoys using the Rapsodo to help pitchers understand pitch design and shape.
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RBJ
Ryan Blake-Jones is the Director of Player Development and a former power hitting 1st Baseman/Catcher who played his collegiate career at Grand Valley State University where he earned multiple All-GLIAC and All-Regional awards while hitting .370 over his college career. Ryan works with hitting training, infielding and catching work. He relates well with players of all ages, and has years of coaching experience!
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Ryan Dorow
Ryan Dorow is a former MIF in the Texas Rangers organization recently retired from the MLB and AAA level. He had a massively successful career at Adrian College and went on to climb the ranks of minor league baseball and get Major League at-bats between 2022-23. Ryan is the current Hope College Baseball Head Coach and has been specializing in training high level hitters and infielders for years. Ryan has an elite hitting and defensive mind and offers detailed training as an MLB player would have.
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Tanner Tresemer
Tanner Tresemer played locally through Zeeland East for all four years of high school while being a team captain and earning All District and All Conference awards. He went onto Muskegon Community College as a team captain and power hitting catcher who hit over .350 his sophomore year and was named to the All-MCCAA team. He will start his junior year on Grand Valley State's baseball team. Tanner specializes in working with hitters and catchers of all ages.
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Christian Kennedy
Coach CK is currently a Michigan's Premier West 13u Coach and will coach Muskegon CC next spring for the Jayhawks as an infield and hitting coach. CK played two seasons for the Jayhawks and in his sophomore campaign he hit .325 avg., .469 OBP with 11 XBH and 3 HR. He is a high-level MIF who played for MP for years and is now joining the staff as his career came to an end. A HUGE pleasure to have him aboard!
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Jack Huisman
Jack Huisman is a former RHP who helped lead Holland Christian to a State Championship in 2016 and went on to play Division 1 baseball at Western Michigan University. He worked his way from a relief pitcher into a starting role over his final 3 seasons at WMU which was an experience that grew him mentally and physically over time. Jack also grew up around the game as his father is a former 3rd round pick, pitched in the MLB and MiLB and long time Pitching Coach at Hope College.
Jack works well with players of all ages, specializing in pitching; but, comfortable teaching hitting for middle school and younger players.
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Johnny Karsten
A current Sophomore at Muskegon Community College, Johnny had a monster Freshman year hitting .389 AVG, .481 OBP with 9 HR 6 Triples and 8 Doubles in 43 games played. He is a corner IF with time in the OF as well. Johnny is a true Swiss Army knife in the field with an elite left-handed swing. He has trained with Baseball Concepts for six years and is a joy to have aboard the staff now!
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Spencer Cable
Spencer Cable was a power-hitting first baseman and outfielder who played at both Central Michigan and Hope College. Cable was a two year Captain at Hope and two year All-Conference with a career .332 batting average, .457 OBP and 132 career runs scored. Cable was a dominant hitter who always delivered in big spots for the Dutch. Also a Varsity Assistant at Jenison, Cable will work with all ages of hitters and fielders.
