- He's never called plays on the Pro level.
- He wasn't even the choice for the interim for the interim coach.
- He's a quarterbacks coach for Drew Brees. Not exactly the hardest job. It's not like he's ever developed anybody.
- Too inexperienced, imo.
As for Pep Hamilton. Not a horrible choice, but getting somebody that has NFL play calling experience would be better, imo.
-that is true, but he has been working with, and presumably learning from, Pete Carmichael and Sean Payton since 2009.
-your second point is meaningless. Carmichael remained the OC during all that time. If something had happened to Carmichael, we have no idea who would have been Interim OC.
-Bruce Arians was "just" the QB coach of Peyton Manning at one time
-I will give you the inexperienced point, but then again, Pagano was very inexperienced when he was hired as our HC as well.
I'm not saying Joe Lombardi is the answer, just pointing out that your arguments against him are incredibly poor. If Pagano/Grigson don't like his personality, coaching style, etc or don't have faith that he could keep the offense successful, innovative and fresh then he should not be hired. But none of the reasons you listed should be used as reasons not to hire, or at least consider, him.