"What I try to do is get an idea of whether they know football," Zorn said. "How do they react at the line of scrimmage? Could they change the play? Were they in the shotgun? I'm trying to find out where they fit in their offense, if they were really taught football and if they're knowledgeable — I'll have him talk us through a play or a read. You get a pretty good feel for who they are."