A really good question by Red Comet. I immediately thought my answer would be ' SFA' but on reflection and reading the replies it is clear he did do some good things. The players in the quote above are all starting to perform well NOW and he did bring some good silverware. But his style of football was so negative and his manner so morose that no team could prosper with him in charge. Oly is light years ahead in tactics and his character is and has always been impecable which has gelled the team and the club. The noticeable difference in tactics is that we are playing in a much more advanced position and the team spirit is much improved.Well he brought in Dalot,Lindelof,Pogba,Fred and Lukaku so thats something he should be credited with. He also helped develop Rashford and Mctominay
People may not like the man and whilst he drastically underachived during his tenure here he has built a pretty good squad with strength and depth that is possibly one or two signings away from a serious title challenge and dare i say it success in europe.
I think Mourinho should be credited with some of the improvements we are seeing today and he won silverware, whereas Oly as yet hasn't but the football has been fantastic - watch this space.