The only names from the list I know anything about are Arians and Clements.
The only thing about Arians that I like is his last name, and that's because I'm Persian.
But seriously I am very weary of O coaches whose claim to fame is through having a stud QB. Kinda like the "Patriots Way" having been exposed as nothing but having lucked into Tom Brady.
Clements intrigues me, (and yes he does have Rogers). I like the fact he has Chiefs ties and success in developing QBs. But even if Pioli went outside the "Patriot Tree to pick a coach he will not wait until AFTER the Super Bowl.