People have really strong opinions about a coordinator who was great calling plays for Drew Brees, and disappointing with a declining Andy Dalton on the field, leading a battered squad, and still finishing 19th in offense.
What we know about him is a toss up so I'll wait and see what he can do with better talent to work with.
The Saints have a history of bringing in notable coaches as advisors. Relationships can lead to opportunities but it's a giant leap, at this point, to make more of the Gruden invitation.