Could you understand why Bayern would have wanted to make a change last summer, which is when they probably made the decision?
Roma need to get a bigger personality than Mazzarri, I think. With no sign of real leadership from anyone else at Roma, they need a coach with a big presence to knock everyone into shape and get them all pulling in the same direction.
However, after seeing so many coaches at Roma and how much they changed, I'd say Mazzarri is a big upgrade. Also, after so much time they finally realized not to focus on attacking style only, ala Spalletti.
