He was also a member of the Columbus Lions of the Professional Indoor Football League (PIFL).

[1] Cassidy also won the Slam Dunk Championship in the Florida Polk County All-Star Game.

[4] Cassidy appeared in two games for the Columbus Lions of the PIFL in 2012, throwing one interception on two incomplete passes.

[6] On April 14, 2012, the Power overcame a 48–17 deficit to defeat the Orlando Predators by a score of 57–54 in overtime, setting a new record for largest comeback in AFL history.

Cassidy, who entered the game in the second quarter after an injury to Andrico Hines, completed the game-winning touchdown pass to Christian Wise.