Richie Incognito may have taken a excrement in the Dolphins locker room, but Martin's people smeared it over every wall on every floor of Dolphins headquarters.
From what I understand, they didn't do anything more than expose the fact Incognito took a excrement in the locker room, the Media did the rest.
If Philbin cleaned up the excrement himself, there wouldn't have been anything to spread on the walls.
As a teacher I liken to a kid caught cheating on an assignment. The kid blames the teacher who caught him (or the kid who might have told depending on the situation) not him/herself for doing the wrong thing.
Philbin fucked up and rather than accept responsibility for the actions of the people he is responsible for, he just wants to blame the people who got him in trouble.