like the Yan Couto deal, It is signed. But of course nothing is official until the transfer window opens and the current club of the players receive & accept the transfer fee.Now I don't know anymore than any other person on this forum if you are itk or not and frankly I'm all for your little fairytale if that's are plan, I do however have 1 problem with what you are saying here. There is no way in this lifetime that we have had all 4 of these players sign official contracts even if what you say is true and they are done deals, they have not had medicals etc and the last thing that happens in any transfers are signing the contracts and sending them off to the fa/league.
I do however see that although we could announce deals I.E. Couto and the other right back "klivert aguero" it wouldn't be wise to announce so many deals prior to the CAS outcome.
If agreed there is no way they are already signed!
You can agree a contract with any players you want. But unless a transfer fee is paid, then it's meaningless is it not?