I'm going to be a contrarian: 5
As far as outgoing players are concerned, it was a complete & utter mess. The Chiesa deal being the obvious highlight.
I don't have any major issues with the players we ended up signing but, apart from Di Gregorio & Cabal, we (massively) overpaid for all of them. Douglas Luiz for €50 million, Koopmeiners possibly/probably costing more than €60 million when all is said & done, a loan fee of up to €10 million for a Portugese youngster, etc.
And then there's Calafiori. Probably the one player where overpaying actually would have made sense considering the squad we have.
Also, unless all/some of the next gen kids really step up, this squad is still quite thin. A few injuries for the wrong people and we're in trouble.
I can't say that, from the outside, it looked as if there was a plan in place. Except for getting rid of a bunch of players / youngsters.
Basically all cost cutting has been short term. Whether or not we're actually any better off in practice remains to be seen.