Given that there are only 32 NFL teams and significantly more than 32 college football programs, I think having even one starting QB in the league is pretty solid. Possibly two starters, if Gabbert shits the bed again. Henne has shown flashes of starter-material over the years. He's not going to lock anything down for any significant amount of time, but he's good enough to hold on to the job if Gabbert blows it.
Hoke was top notch at this aspect of his job.