My mind can't help but start to think about Pochettino and how he would play if given our current squad and then who he would want to upgrade ASAP to give us the best chance of success....
Something like the below perhaps if considering those at the club already and he wanted to continue with the diamond that he was trying to put in place towards the end of his time at the club?
------------------------------Lloris
---------------Romero------------------Lenglet
-----------------------------Hojbjerg
Spence----------------------------------------------Sessgnon
-----------Bissouma/Skipp?-------------Bentancur
------------------------------Kulusevski
----------------------Kane------------Richarlison/Son
That above team probably needs a new keeper who is better with the ball at his feet than Lloris and also comes off of his line like Lloris used to do 8 years ago (Brentford's keeper might be a good fit). It would also be crying out for a better (more physical and fast) centre back than Lenglet (Ndicka would be my pick here, especially as he has played as a LB and it is essential that the CBs in a Poch team can defend one on one against wingers). Also perhaps a better option than Bissouma/Skipp in midfield, though I think both are far better than they have shown this season. I think Poch could mould that team above (with Lenglet replaced with a proper fast, physical CB) into a team that could be better than the sum of their parts. If Poch did end up back at Spurs then it wouldn't actually massively surprise me if Regulion and one of Ndombele or Lo Celso came back to the club. I also wonder whether Rodon might be suited to at least be a reasonable back up player as a centre back playing in a two with protection from an out and out holding midfielder.
If we persist with Conte then I think we need to add more players.... At a minimum, a keeper, two new CBs, a RWB and a rotation option for Kulusevski.