Rich Rodriguez calls quarterback Nick Sheridan the 'safe' option

"We had Tate Forcier here in the spring, but that's just 15 days, and so having those guys for a short period of time has given us encouragement how quickly they've learned," Rodriguez said. "But we also have Nick Sheridan, who knows the offense and is kind of the safe guy to put in there."

He also said he wasn't sure what to expect regarding playing time when Robinson arrived before the preseason, but that he had been a "pleasant surprise" and that it is a "bonus" he'll be able to contribute to the offense.

That, though, doesn't sound like an endorsement of a starter.

While Rodriguez didn't name a starting quarterback Tuesday, he did give a little bit more insight into how he might use the quarterbacks Saturday against Western Michigan.

"We're just going to play it by ear," Rodriguez said. "There could be two quarterbacks in one particular series, depending on the play. We've kind of prepared ourselves to do that by doing that in practice."