After pretty much 2.5 seasons we can assess now. On the pitch he's played a reasonable hand with the resources he's been dealt. Points return is OK, the big weakness is the tendency to go through horrendous runs of shipping shed loads of goals. The strength is the ability to come through those and produce a vaguely coherent team again. In a game of fine margins, it doesn't take much imagination to find the handful of points we'd need to be in the driving seat as far as getting in the playoffs is concerned.
Off the pitch, well, at best he's best left ignored. A bit of media / communication training could work wonders there.
Overall I wouldn't be too aggrieved if he left. I'd be very surprised though. I don't see him either getting the boot or another club coming in for him.