1. He blatantly only took the job in the first place to spite Mandaric.
2. He came in and immediately started spouting off to anybody who would listen that the squad of players he had was not good enough to stay up (getting his excuses in early for when it went tits-up).
3. He made some awful signings and totally disrupted the squad
4. He publicly humiliated the academy kids by setting them up to fail in the cup game at Mansfield so he could prove a point to Lowe
5. Then he admitted after leaving that he was never really bothered about the job in the first place.
Seriously, how much respect do you think he is gonna get on this board?
The only place he has ever really done well at is Spurs, but they seem to be happily doing well without him so his actual influence there is questionable. As others have pointed out, you really can't cite his time at Pompey as a success as it was built on completely unsustainable debt and therefore doesn't count (Jesus - even I could get a football team promoted from the Championship given the funds he was allowed to play with) so taking those out of the equation, what has he really ever achieved?