I HIGHLY doubt I know more about football than Les Miles.
That said, the question is how knowledgeable is HE compared to HIS peers. And having knowledge for the sake of knowledge means little if you don't apply it.
MANY of the same posters on here that feel that Miles is above receiving criticism by fans because they may not be more knowledgable, probably are the same ones that have a mouthfull to say about Saban.
They may not like Sabans methods or his personality but its OBVIOUS he knows football. Maybe those negative aspects of Sabans personality is whats needed to build programs and win consistently. Maybe not, but by the OP thinking, nobody can criticize Saban unless they know more about football than he does.