I back RR and blame the majority on the players. With them either not suited, not interested, or not good enough.
However, we've been in an odd half way house since Norwich. He's using the formation he wants, but without the actual principles required for it to work.
I genuinely think after Palace he abandoned his principles for matches, to train them first, but COVID tore that up. So we're left in this odd space where we're not pressing, we're not progressive on the ball and our forwards (10s) leave space for teams to kill us on the wings.
We all know we're desperate for a RB and at least one CM as well. But right now, we've lost the ability to pressure the ball from the middle and get turnovers with Bruno and Fred on the bench.
However, the biggest problem, is the front four. They don't press, they don't stretch the play, they occupy each others space, they provide poor passing options for our midfield and... They're selfish with each other.
When they had the chance to link up yesterday, they either fluffed their lines, or turned it down. Be that Cavani taking a wild shot when Greenwood was free in the first half, or Greenwood turning down Ronaldo on the break in the second half.
He has to find the right blend upfront, regardless of fee, or name. Or the 4-2-2-2 is dead. The front 4 have to work together or the whole system falls down.
So, he either commits now to instill long term fundamentals, or changes the system in the short term to win games.
I hope; and think, he'll be bold enough to try and implement the long term across the coming weeks in training and (hopefully) in the market. But he needs to be braver. Otherwise we'll stay in inertia.