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We Work With All Levels

Youth & Coaches


Individual, team, and coach training.

Clinics & Camps

High School & Collegiate


Advanced training, lessons, & clinics



Hitting & Defensive services for professional players.

About Eric Campbell

Eric started Lumber to Leather after finishing a 14-year (2008-2021) professional playing career with the New York Mets, Miami Marlins, Oakland Athletics, Seattle Mariners, and the Hanshin Tigers of Japan. After being named a AA and AAA all-star, Eric played 4 seasons in the MLB with the New York Mets and Seattle Mariners, including the 2015 season when the Mets won the National League pennant.  
He has a proven track record of improving players at every level by introducing easy to remember drills and thought processes.  With a focus on body positioning and fundamentals, he sets players up for success.  

Most Improved Player

Congratulations to January's Most Improved Player

Aiden Johnson

Montville High School 2025


Previous Most Improved Players

January- Cate Fusaro NFA class of 2024

February- Johnny Lazarou- CT Crush 13u

March- Daniel Gelinas - Waterford 12u

April- Andy McDonald- East Lyme 13u

September- Joseph Berrios- Clinton 11u

October- Drew Sheriff- Montville 11u

Why I Do This

A Note From Eric

I started “Lumber to Leather” for a simple reason.  I love helping players improve their game and mentality.  I was fortunate to play with and against the best players in the world for 14 years and I learned a ton in the process.  The common trait that the great ones share is they come to the field focused on getting better every day.  They commit to their craft and always find a way to improve.     

The coaching I received throughout my career was second to none.  I can confidently say I worked with the best hitting and defensive coaches in the world during my development.  A  number of the drills I do with current players are the same drills that helped me have success throughout my career.      

My vision with "Lumber to Leather" is to help develop players that are passionate about baseball and softball.  Whether its making a Little League All-Star team, making a High School team, earning a College Scholarship, or playing professionally, every player has a goal in mind.  I will help you achieve it.