Pinegar looked great last year cutting up week WAC teams, but I doubt he would have fared much better than Grady did against Tennessee. Grady is a solid QB, has been in the system for four years, was the back-up to David Carr, and didn't lose the job to Pinegar, he got hurt against OSU last year and Pinegar emerged from that point.
Don't be fooled by their poor performance last week, Fresno State has some studs in the skill positions, especially WR. Tennessee didn't exactly blow them out.