I generally agree re phony titles.
In Pepper's case, I do not think tht he feels appreciated or appropriately recognized - at least by the Giants and other teams not willing to even interview him for DC.
He probably does not feel this way about the Bills. With the Bills, he has an opportunity - rare opportunity - to work with and learn from Rex. How many future DC candidates can say that they have worked with Rex, Schwartz, and Belichik . . . not many.