It's patently OBVIOUS why he got the hook - he had no plan B, he'd lost the dressing room, he was tactically naive and was forever putting round pegs into square holes, the **** had to go eh?
One thing he quite obviously didn't do is lose the dressing room.
But you're otherwise spot on. We've shown little attacking intent, he's been obsessed with the 4-4-2 and he's refused to use the 3-5-2 that has gotten him out of jail on numerous occasions to start games.