I have seen lots of posts, that see Ipswich as a bad stain in his CV.

But I have always been under the impression he did really well at Ipswich? Didn't they refuse to spend money for years and years, the fact he kept them a mid table championship side for so long under terrible conditions was a good achievement.
Proven by what has consequently happened to them as soon as he left.

I also remember MM's Ipswich being a very difficult game for Cardiff whenever we travelled there.