yeah....
Glen is tired of playing 2nd banana to Michigan and Ohio State in the Big Ten. Since he can't get over the hump against those 2 (although he did beat Michigan this year), he might as well leave.
Also, it depends on the contract negotiations with Minnesota. Supposedly it's rumored that he is looking for a retirement clause with Minny.
He might see it as the chance he never got while at Kansas to win a conference without a strong Nebraska there to whip him.