The back 3 could work. Just about.
But only with Romero, Danso and a motivated VdV
With Porro at RWB and Udogie at LWB
Tudor had any of that since he arrived and should have seen how biblically bad the other options have been.
Putting midfielders at CB and Porro there to have Gray outside is mental stuff.
I hope, after yesterday, he's realised this league is tough and you have to play the players in their best positions, not your favourite formation.
For me, it was that attitude that got Ange sacked, Amorim sacked, AVB sacked and all sorts of other coaches who just couldn't adapt or figure out that football isn't 1 formation of 1 single philosophy. No matter how good a team is, there has to be flexibility.
A back three just has a fundamental flaw though - the opposition play 433 and in order to cover the wingbacks spend all their time defending - the opposition now have the 3v2 in central midfield