Rank these possible replacements, trying to factor in: availability, program fit, personality, etc.
This list is just reference for the topic and not in my order. It also assumes there's no divine intervention with guys like Meyer, Saban, Stoops, etc:
Chris Petersen, Bobby Petrino, Tom Herman, David Shaw, Justin Fuente, DJ Durkin, PJ Fleck, Les Miles, Dan Mullen, Kyle Wittingham
This list is just reference for the topic and not in my order. It also assumes there's no divine intervention with guys like Meyer, Saban, Stoops, etc:
Chris Petersen, Bobby Petrino, Tom Herman, David Shaw, Justin Fuente, DJ Durkin, PJ Fleck, Les Miles, Dan Mullen, Kyle Wittingham