No it doesn't make sense if he stays... think about it. You hold on to herm 1 more season, he turns out to lose around 10-11 games again next season even with more talent on the roster (assuming Pioli does go out and spend). You just wasted 1 season of your rebuilding on a coach that you knew you were giving 1 more shot to. Herm may not be a bad coach but right now it is just too much of a risk to keep him I think instead of starting over right away...
On a side note I saw that Julius Peppers is not going to sign back with the carolina panters... can anyone say with our large cap space that there is a good chance he could be a chief?!