Fair arguments.Al these players coming to the end of contracts are in no rush. Many will hold out, hoping a PSG, Madrid or Liverpool will offer them the wages they want.. Kessie and Brozovic aren't going to just jump up and sign a contract the second Tottenham offer the terms they want. I'd be shocked if the club hadn't made contact of some sort with Kessie and Brozovic to be honest. Apparently Brozovic is happy at Inter and very open to signing a new deal. Rudiger probably unlikely to join a club well beneath him in the league, could be wrong on that, but unlikely to agree to a pre-contract with a local rival club mid-season. Isco was good five years ago. Dybala no longer worth the 200k+ he'll be looking for and unsuited to pace of PL.
Vlahovic, Skriniar, De Vrij not going to move in January. Gravenberch not going to move to Tottenham. We may very well sign Traore.
This also speaks to the wider issue that Spurs don't show the ambition required to convince players worth having to join. It's a vicious cycle.
If city, man utd, Chelsea, go for these types of players they likely convince them.