He's done fairly well at keeping teams in the league that appeared to be in trouble. He also did pretty well at Millwall taking a side that had finished 21st the year before him, he then never finished outside the top half and had them very close to the playoffs twice.
I don't want him on a long term deal but as an interim I think he'd be fine, I'd rather that then them rush a long term appointment and someone better becomes available in the summer.