Giger's Game Breakdown: It's all on Sean Clifford

Sean Clifford is the key to this Penn State season.ALTOONA, Pa. -- Sean Clifford is the most important player in college football to his team. No, he's not the best player in college football this season. But we're talking relative value here.

If Penn State's third-year starting quarterback plays really well, this could be a 10-win season -- perhaps even better -- for the Nittany Lions.

But if Clifford struggles or can't play for some reason, well, PSU went 4-5 last year, and another .500 or worse season isn't out of the realm of possibility. There's no proven depth behind him, so it's really Clifford or bust.

All eyes will be on Clifford when No. 19 Penn State opens the season at No. 12…