CaptainMax

Running downhill chasing cheese.

It's the hope that kills you.

They should know by now the fans won’t buy whatever they are selling

I have been trying to piece together the story behind Maresca's departure and have come up with a 'theoretical explanation'. I am not trying to defend Maresca, everyone has their own opinion of him and his football, but I am trying to piece together a narrative that illustrates the royal sh*t show Eghbali and Co. are running. I am too lazy to quote any sources - my claims are based on complete conjecture, so make of it as you will (with a pinch of salt).
Go back to the beginning. Do you see the pattern?
Tuchel; elite level - walked after not being happy with Boehly (and friends?) sticking their grubby fingers in his pie.
Potter; fish out of water - euthanised.
Lampard; interim - enough said.
Poch - pseudo elite level - at the end of the season he sat down with the board and thought, "Yeah, nah. I am not going to achieve anything with these guys".
Maresca - wannabe elite level - he didn't get sacked, he walked.
Maresca is not an idiot. Before coming here he would have done his due diligence and knew what he was getting into before coming here. He would have had his agents speak to the agents of Poch and Tuchel to get the lowdown on why they left, and they would have said the same thing. Too much interference from the top and their job was untenable.
When negotiating his contract I reckon Maresca would have tried to include something to give him more control if he performs well. I don't know how strong these terms would have been. In his first season he achieves the goals of getting the club back in the the Chamipons League, winning the Conference League, and also winning the Club World Cup, so he thinks he is in some position to negotiate to gain more managerial control.

At the start of the season he gets his agent to speak to the club, and the club refuse his requests, perhaps delaying talks to the end of the season. In the meantime, the medical department is giving him directions for substitutions and Eghbali (and Co.) is telling him he needs to play younger players more to keep up their book value. Maresca doesn't always follow these directions, but is getting results, 2nd or 3rd on the table, so not too many qualms.

Discussions between his agent and the club are going nowhere, he gets frustrated and appoints Mendes as his new agent in October. Mendes gets Maresca meetings with City and Juventus for Eghbali (and Co.) to take notice and talk (even though they do not amount to anything). Eghbali (and Co.) sees through this ploy. Sometime after the Barca game Eghbali meets with Maresca and rips through him, probably telling him that he has no chance of increasing his managerial control.

Then the bullsh*t starts happening, results and performances start going south. Maresca starts making some (more) questionable tactical decisions during games, either based on a resentful obsequiousness of the club's directives so he can stuff poor results in the face of Eghbali (and Co.), or as a form of self-sabotage to try and get sacked.

In the "48 hours" before the Everton game, Maresca gets a dressing down in the boardroom once again, and it explodes. He threatens to quit, Eghbali (and Co.) remind him of his contractual obligations and the penalties if he walks. The bullsh*t continues. Eghbali (and Co.) are smart enough to know it is no good holding on to a disgruntled employee so they begin sounding out alternatives.

More bullsh*t happens, and come the Bournemouth game, Maresca asks Caballero to talk to the press while he gets on the phone with Mendes to tell him he wants out and to negotiate an exit from the club. The club knows they have to negotiate an exit package, even though the contract might strictly say otherwise, as they need to control the narrative of Maresca's departure otherwise they don't stand a chance in hell of attracting anyone half-decent. Pay him so he shuts up. NDA's, $ and terms take a couple of days and Maresca is unceremoniously removed from Clearlake's payroll on Jan 1.

The club now, I reckon, finds themself in a bit of a pickle.
There really isn't anyone decent available - at least not anyone decent who is willing to let others call the shots (hence why it won't be Xavi).
They could poach another manager from another club mid-season, but last time they tried that it didn't pan out too well. You are hardly ever in a good negotiating position mid-season, and again, of the names being bandied about, who would seriously want to? Iraola? Howe? Farioli?
Interim manager for the rest of the season? Who? Someone internal? FSW? Allardyce?
So it comes to Rosenior. I highly doubt he is anything else but a plan B, otherwise he'd be in by now. Eghbali (and Co.) have known that Maresca's tenure at Chelsea has been at risk since mid-December, and they have had all that time to get their ducks in a row. A manager at another Clearlake owned club shouldn't be too much trouble to poach even though they would have to find a replacement. The board have got the PR department to work on this one, saying that they are "really impressed with Resenior's work at Strasburg", to ease the fanbase's concerns when it eventuates.

We can all see how this is going to end up. Should we even bother?