I see a few reasons for skepticism...
1) QB coach at OSU is a huge jump to go direct from Grad Assistant. We've seen this before with Nick Siciliano. Not even saying he's bad, but that OSU isn't really a "first job" kind of place.
2) Urban-related nepotism has not worked out well for us in the past (Zach Smith, Bill Davis)
That said, the votes of confidence from Haskins, Burrow and Chugs have me cautiously optimistic. I feel like I remember several of the OSU quarterbacks mentioning Corey un-prompted before as well, when being interviewed on "how Ryan Day teaches quarterbacks." Hopefully we've got another rising star on our hands in the vein of Hartline.