Andy Mitchel joined the Wittenberg football coaching staff in 2006. In addition to his offensive coordinator duties, Mitchel guided the team's quarterbacks in 2006 and helped mold Aaron Huffman into the NCAC Newcomer of the Year, and in 2007 he oversaw the No. 1 scoring offense in the NCAC. In 2009, quarterback Aaron Huffman and wide receivers Michael Cooper and Josh McKee rewrote nearly every season passing and receiving record in the Tigers' books under Mitchel's tutelage.

Mitchel was offensive coordinator and position coach for quarterbacks and wide receivers at Simpson College in Indianola, Iowa, for three years prior to his arrival at Wittenberg. He had a wide range of duties at Simpson, including coordinating and scheduling of junior varsity games, coordinating campus visits as the program's liaison to the admission office and organizing and implementing a digital editing system for all game films.

On the field, Mitchel implemented a pro-spread offensive system to great effect. Simpson made the 2003 NCAA Division III Tournament, finishing the campaign with a 9-2 record thanks in large part to an offense that led the Iowa Intercollegiate Athletic Conference with 424 yards per game. The catalyst was quarterback Mike Donnenwerth, the league MVP, who threw for 322 yards per game, a total that ranked seventh in all of NCAA Division III. In all, Mitchel coached two All-Americans, including 2005 Gagliardi Award finalist Dusty Kain, a wide receiver, and 10 all-conference performers.

Mitchel got his professional start at the University of Wisconsin-Platteville, where he served as wide receiver coach in 2000 and 2001 and passing game coordinator/quarterbacks and wide receivers coach in 2002. Wisconsin-Platteville ranked No. 1 nationally in passing in 2001 and led the Wisconsin Intercollegiate Athletic Conference in total offense and passing offense in 2001 and 2002. Mitchel coached one All-American and five All-WIAC performers in his three seasons there.

Mitchel also enjoyed tremendous success as a player at the NCAA Division III level, garnering three all-conference awards as a wide receiver at Hanover College. During his career at Hanover from 1996-99, Mitchel played on teams that won two conference championships, advanced to two NCAA Division III Tournaments and compiled a sparkling 35-7 overall record.

Mitchel, who resides in Springfield with his wife Michelle and son Tucker, holds a bachelor of science in physical education and health education from Wisconsin-Platteville, earned in 2003.