Are you joking?
Over the past four years we have won four consecutive Big Ten titles, played in four consecutive BCS bowl games with two of those being National Championship appearances, and had a Heisma winner. He's got Ohio State on his best streak ever against Michigan and is 7-1 overall.
The man has won over 80% of his games and has a national title on top of all that... and you think he should be fired if he continues that?