It was a year... One
Not even 1.
On 1 January 2011, he "retired" from coaching to concentrate on family and health. He agreed to become the HC at OSU on 22 November 2011.
There was no conspiracy, but ****ty.
The coordinators who helped him win the championships left, he was fresh out of Zook players, and the program was in shambles. He wanted out and health seemed like a good enough excuse.