I agree that he has done well in the transfer market. A lot better than Hughes ever did, however having an almost endless amount of money available makes that less impressive. Would he be able to identify targets with the kind of money Harry has had available, I'm not so sure. I think someone like Rodgers who has picked up Caulker and Sigurdsson on loan without spending any money deserves more credit for identifying targets.
Managing egos certainly isn't easy. And by the nature of being a buying team his group of players is probably harder to control than ours for example. He hasn't done anything outstanding in this area either though, average at best.
Mourinho had (and has) to compete with a team many talked of as one of the greatest team ever, a team that bent the United side City have to compete with over a chair and spanked. Of course Mourinho had a better team to start out with than Mancini, but I still think the comparison is a bit off. How would City under Mourinho do in La Liga? Somewhere around Valencia? Perhaps even a bit behind Valencia?
I have seen very little to be impressed by, and failing to instill the right mindset into his players, despite being able to buy almost whatever players he wanted, is just another average at best quality of his in my opinion.
