I think my vote settles at a passable, but still not solid 6/10.
The main objectives for this transfer period as stated by the team braintrust was as follows:
One top signing at each position, new backup goalie. So, we'll critique those.
We'll consider Amauri a top signing, so 1/1.
Poulsen is a solid midfielder, but a top signing? not so sure, yet. Does he make the midfield better? Yep. He does allow the ability to cultivate Marchisio's development though. Lets say 0.75/1
Mellberg is at best a passable depth defender and a temporary solution. Is he better than Chiellini? nope. A healthy Andrade? nope. Criscito's potential? probably not. Legro?? debatable. Does he make the defense better? No. But he adds experienced depth. However, depth is nothing without top end talent on the top of the depth chart. Ditto for Knezevic. This was the biggest need and it went wanting. Swing and a miss. 0/1.
Manninger is one of the best backups the team could have snagged, except maybe for Juve-owned Mirante... but its doubtful he'd want to be Buffon's backup and waterboy at the age of 25. He has a better chance starting for Doria. Manninger is solid though. 1/1
Bonus points:
For not being morons and bringing back Marchisio, Giovinco and De Ceglie. +0.5
Deductions:
Sending Almiron to a direct rival and allowing the potential of his resurgence to hurt us. Even though this isn't likely. -0.25
Failing to offload Tiago who is probably now a locker room cancer after this saga. -0.5
So, 2.75/4 on transfers, minus 0.25 total on bonuses, less deductions.
So: 2.5/4 = 0.625, rounded to 6/10.