I should have been clearer, my apologies.
My major point was that while it appeared to be a sound approach when it looked like Casey would be here for the remainder of this season and a couple more beyond that, now that Boyle logistically cannot be redshirted this year, we need to play the better of the two (Whitmer, Boyle) QB's now.
I also added (and yes, I should have mentioned Sherrif, my apologies for the omission) that we need bodies for this position going forward and both a JUCO and (if we can find one) a post-grad (giving us a junior and senior as backup QB's next year) added this offseason should be a goal.