Three things:
1) Lage played three CHs in every game in 2021/22
I didn't for a second suggest he did. He did however get shot of the one player (Coady) who made a back three work. It's not until the introduction of Dawson that the defensive unit again looked cohesive.
2) We have been pretty crap for ages with three CHs, alternately stodgy as all hell going forward and looking like a Mark McGhee team on the ball, or still leaking goals despite the extra defender (last season)
I suspect playing a four last season would have been (indeed was v coventry) worse than a back three.
3) Continually running back to three CHs because "we can't play four at the back" (who is "we", here?) smacks of Spinal Tap rolling out Stonehenge when their tour is on the rocks. It didn't help them either
The back four per se, is not the problem. "We" is the current personnel which I believe is and has been for some time the reason we can't play a back four.
Under Nuno, Wolves never had two CB's who didn't look more comfortable in a three.
Under Lage he didn't ditch the three, he just ditched the player who made the three work, so we were no longer capable of playing either formation to a satisfactory level.
Under GON, the three worked okay but Dawson was required to hold the hands of his fellow CB's.
Kilman was never as good without a Coady or a Dawson. He needed his hand holding, I'd have not been happy with him in a four this season holding the hand of Mosquera or Toti.
While Dawson can do the hand holding, he's not mobile enough unless he's in a three.
The personnel needs changing if you wanna play a four, until then it has to be a three...
The hope was, selling Kilman would enable us to bring in a CB capable of holding the hand of his inexperienced defensive partner in a four...
Until that happens, I believe we're stuck with a three.