Rather than answer your question directly out risk of being called a pessimist, I will say this. I do like Saleh. But then again, I liked Todd Bowles also. I'm apprehensive about JD and I was also apprehensive about MM, Idzik, and Macc. And I probably talked the latter 3 up...not because I believed in them but because these were the guys we had to work with.
I think you're the type of person who thinks that the only way to properly build a franchise is to start from a clean slate...and that's a rarity from Superbowl winning teams.