So a coach needs a team with no weakness to do well?
He was referring that A.Sandro is a bigger weakness than any of Inter or Milan weaknesses and I dont think he is wrong.
This being said - his "you are only as good as your weakest link" is more like a phrase than reality.
If you are better than your opponents overall it means you are better than your opponents. Since it is a team`s game with 11 players its more about the overall strength than just 1 player vs another player.
On paper I believe we are the overall strongest and Inter are 2nd.
The thing is paper means nothing. There is chemistry, team work, determination, how they cover for each other, etc..
Milan won the Scudetto but they are definitely not the strongest in terms of players.
If we gel we get the Scudetto back simple as that.
P.S Watch Lukaku fail under Inzaghi.