We won't swap out JJ at this point. You have to see if there is anything there for the rest of the year.
That said, there would 100% be calls for the backup regardless of where he went to college. Most Vikings fans don't care about the U of MN.
In the NFL, if the quarterback is struggling, the fans start clamoring for the backup. It's happened here for guys like Gus Frerotte, Kelly Holcomb, Joe Webb, or Kyle Sloter. When you're watching terrible QB, whatever the F is behind door #2 seems appealing.