Id say he would actually improve our squad. If we could sell Keane for 35m and get Silva on a free that would be great business allowing us to put all of those resources into the positions we need now, and buying Braithwaite a season or two.
Silva is starting in the Champions League right now, he would immediately improve us.
Also, I dont get the people saying "6th place is impossible, 8th is our best hope". Theres literally 3 points between the two this season. Maybe the rest of the league falls off a cliff and it becomes a bigger gap again, but that seems unlikely since the rise of Wolves, LCFC. The move from 8th to 6th is nothing compared to the move from 12th to 8th.