Well 6,5 for me...
We did really great in finding some prospects that MIGHT turn out to be good, while strengthening our bench significantly. Morata, Coman, Pereyra immediately pop into my head here. Evra obviously fits the latter part, 'though he hasn't impressed me at all up until this point. With a bunch of other youngsters on loan/co-own our future is secured for sure. Only Barzagli & Pirlo need replacements quickly. That can be dealt with. Especially when we switch to a 4-men back line.
That being said, the fans can only be disappointed that not one single possible player has come in who stands a chance of breaking into the first team any time soon. While also failing to sell some of the deadweight we had left. Overall we sold pretty well this summer but some failures out of our current management's first summer keep hunting us somehow...