Caponi helped Mount Union achieve a 55–1 record and win three NCAA Division III Football Championships during his four years.
[1] Caponi started his coaching career at Mount Union as a student assistant.
After one year with Mount Union as a student assistant he was promoted to coach the linebackers.
[2] Caponi was then promoted to coach the safeties for Arizona after one season as a graduate assistant.
[4][5] Then after four total year with Arizona, Caponi's next stop was as the defensive backs coach for West Virginia.