Arthur “Ted” Stenberg IV enters into his 23th year coaching baseball, and 3rd as the New Market Rebels Head Baseball Coach.  He capped his seventh year of college summer league coaching by leading the Niagara Power of the New York Collegiate League to their first-ever league championship in 2019, finishing at 34-12-1.

 The quality of coaches I had with me, after a six or seven week search, shared my vision for a summer season, the message that we gave to the players stayed consistent throughout the summer – come to the ballpark with energy every day and be coachable, was the key to winning that championship,” Stenberg said in a phone interview.


Stenberg started his college baseball career at Florida Southern from 1995-1997 and continued it at the University of Tampa from 1998-2000 where he earned a degree in Exercise Science and Sports Management.  He played a variety of positions including First base, Third base and Pitcher.  After his college career, he signed a professional contract with the Pensacola Pelicans in 2003 as a pitcher, where he played until an injury ended his career.

 Among the players that Stenberg has coached, thirteen were selected in the Major League Baseball draft, 2010-2016, and five were free agent signees. Three of those players were on 2022 Major League rosters: right-hand pitchers Art Warren with the Cincinnati Reds, Trevor Richards with the Toronto Blue Jays, Matt Peacock with the Arizona Diamondbacks, also left-hand pitcher Travis Bergen, who is in the minors with the San Diego Padres.

During the summer of 2020, Stenberg obtained the Florida Baseball Armory SAVAGE pitching certification, Driveline Foundations of Pitching and Basics of Pitch Design certifications, as well as Rapsodo Pitching Certification.


Stenberg has worked with some great coaches, as well as coached and mentored some good players. He attributes his success to learning from each of them.


Arthur Stenberg

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Cameron Chafetz


Cameron Chafetz just finished his 2nd season as the hitting coach for Lawson State Community College in Birmingham, Al.


In Chafetz first full year as hitting coach, the cougars put together one of the most complete seasons in program history.


The cougars set a new conference record for wins, set a new program record for RBI’s, finished 2nd all time in Hits, Runs, Batting Avg & Triples. 3rd all time in Doubles, HR’s & Total Bases. 


Originally from Ft. Lauderdale, Fl Cameron resides in Birmingham with his wife Shelby 


Garrett Nance

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Garrett Nance is in his first year as an assistant coach at East Georgia State College. As an assistant at East Georgia State College, Garrett works alongside with the hitters and catchers.

Prior to East Georgia, Garrett was Head of Baseball Operations for nationally recognized Game Time Prospects, which is one of the premier organizations in the state of Florida. Garrett was also a Head Coach for three summers for the Game Time Prospects.

Alongside with coaching the Game Time Prospects, Garrett was an Assistant Coach at Brandon High School, located in Brandon, Florida. While Garrett’s three years at Brandon, he helped turn the historic school back to its known success, while helping lead the Eagles to a regional appearance in his last year as the Eagles assistant coach.

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Jonathon Cumpston


Jonathan Cumpston arrives in his first season with the Rebels with a plethora of experiences and will be serving as the Pitching Coach this summer. He brings aboard a 12-year career background coaching college baseball at multiple levels ranging from NJCAA to NAIA levels, and individually as a Player Development Pitching Coach training pitchers at the NJCAA, NCAA DIII, NCAA DII, and NCAA DI levels; to include, pitchers at the MiLB levels too. Throughout his journeyman baseball career, his experiences range from Head Coach, Associate Head Coach, Director of Baseball Operations, Recruiting Coordinator, Player Development Pitching Coach, Certified MLB Scout, and Assistant General Manager where he played a part in leading the Peninsula Pilots to the 2021 Coastal Plain League Championship last summer. He just wrapped up coaching the Pitching Staff at Byrant & Stratton College (VA; NJCAA DII, Region 10 East) as the Assistant Coach for the Bobcats and is also the CEO and Founder of the Player Development Pitching Business out of Coastal Virginia called SliderBoys Pitching. 


Jonathan brings a player-first, energetic, and passionate style to coaching pitchers from the various approaches he brings to the table. He brings a part old school and part new age technology and analytically style to pitching setting his pitchers up for the best possible success on and off the field. His mission and philosophy states to “Prepare today for your desired results tomorrow.” He’s a preparation-focused and strategy-minded coach and pushes and motivates his pitchers to trust what they feel by listening to their arm’s. He brings out the best in each pitcher he coaches, and challenges them to find out what’s within their shoulder’s. 


Prior to his coaching career, Jonathan served as a Sergeant and Avionics Technician on the F/A-18 Fighter Jets in the U.S. Marine Corps for a five-year active-duty tour serving our country. Collegiately, he pitched at NCAA DII Mars Hill University and also for a year on the Marine Corps National Baseball Team too. 


Currently, Jonathan resides in the beautiful Norfolk/Virginia Beach area of Coastal Virginia and grew up in sunny San Diego, California and Newport News, Virginia. His passions in life outside of baseball center around his outspoken heart for mental health where he serves as a motivational speaker advocating for it and transparently shares his journey living with mental health in sports with a mission and goal to “Strikeout the Stigma” on mental health. If he’s not speaking to audiences about mental health, you’ll find Jonathan at the beach, hanging out with his friends and family, on the golf course, or throwing darts.