Yes. Any new manager will bring in new staff and (some) new players. Cue one and a half seasons of settling in while the scum win the league.
BTW, the question - "whatever happens this season" - suggests that we should dump Mancini even if we win the premiership? Is that a joke.
It's clear to me Mancini has had a big impact on the team, and they will only play better next season. The problem with breaking down teams who park the bus will be solved before long...