Yes, I agree with your points, even though I still think Adam would be good buy, indeed together with more 1 or 2 players. Strong midfield play is what united lacks at the mo, i would say. And it will be worse next season. If we count some injuries then it might result into disaster...

Anyway, there will be also Totenham and Liverpool hunting Charlie Adam, so it might happen that Modric or Kranjcar will be leaving spurs.