Sounds promising. As said before the central midfielder and striker are presumably the two on their way with a possible third being Vicente's replacement. Not sure who the fourth would be but I suppose it depends on any fringe players leaving.
McCann won't be the "spectacular" player people are talking about but if Vicente is off, there is a fair chance that his replacement will be that and McCann is the box to box midfielder we were after. As someone else said, he fits our bill of adding height to the midfield and being a step up...