I wouldn't say he did well. He didn't win a trophy despite having the best squad in the Europa League by a considerable margin twice. He come 3rd by a single point on the last day of the season, could have so easily been 5th. 2nd last season, when so many others were off the pace and still nowhere near challenging the leaders.
He leaves the club with a very unbalanced squad, with a number of players looking for a way out and no style of play.
I'm sorry but I can't look back on his tenure and say any of it was successful. A well intentioned experiment with the wrong man unfortunately.
Ole will always be a legendary player, unfortunately also one of our worst managers.