I did mention the occasional European achievement but I'm not sure that dominating the Scottish football scene is much of a selling point when you're a Celtic manager lacking in Rangers opposition (I think that coincided anyway).
It irks me that he seems to be such a highly rated manager in some quarters.
He did well in terms of European achievement (sort of) at Celtic but otherwise hasn't achieved an awful lot. Due to the situation at Bolton being as it is I can't imagine he'll be damaged much by his time there...