Karl Carswell graduated from Shawnee Mission West High School in 1990. The New York Mets selected him in the 43rd round in that same year. From 1990-1992, Karl played second base and centerfield under the direction of Coach B.D. Parker at Butler County Community College. While at Butler, Karl was recognized on the All-Jayhawk League and All-Region teams in both his Freshman and Sophomore years. As a sophomore, Karl was named to the NJCAA Division I All-American team, hitting .484, third highest batting average in the nation that season. This batting average made him the winner of the Rawlings Big Stick Award. During the summer of 1992, he was selected to play in the prestigious Cape Cod Summer League in Massachusetts for the Yarmouth Dennis Red Sox.
Karl played for Olympic coaching staff member, Coach Ray Tanner of North Carolina State University as a centerfielder and rightfielder. From 1989-1994, he was a seasonal camp private instructor for the Grand Slam USA/American Baseball Academy. In 1994-1996 he was also the senior hitting instructor for the American Baseball Academy.
Returning to Kansas City, Karl (in partnership with his brother, Ken) created Barnstormers Baseball in 1996. Shortly thereafter, Karl attended and graduated from the Tampa Bay Devil Rays' Career Initiative Program. This program was designed to identify and promote talented individuals for scouting, coaching and other baseball-related occupations. As a result of this experience, Karl has been a Major League scout since his graduation. His scouting experience has at the Major League level been with Tampa Bay Devil Rays, Montreal Expos, Florida Marlins, Chicago White Sox, Texas Ranger, Anaheim Angels end with the Kansas City Royals in 2008.
With his personal playing, coaching, and educational experiences, Karl has created a solid foundation for Barnstormers Baseball. Under Karl's direction Barnstormers Baseball and staff have helped over 400 players obtain their dream of earning scholarships for and participating in baseball at the college level. Barnstormers Baseball has increased their influence and is primed to help over 100 more players receive scholarships to play college baseball this year alone. The program has now grown to include younger player development, grade school players and teams.