I think this is what Kelly needs. He has a system that is working in the NFL right now, he just has no idea how to get his o-line blocking for it. Stoutland does know NFL o-line talent, and the Eagles could go and draft all three of those Bama prospects and nobody would call them homer picks, or complain as philly's o-line is horrid.
As bad as the Eagles' line played this year, they can open a good bit of cap space by just drafting those Bama lineman and releasing who they currently have. They can't really do any worse.