I think we have to apply this sticky period of form (and, at times, tedious levels of entertainment) with a bit of nuance, which I find football fans do sometimes lack.
We haven't played well these last 6 or so games, perhaps in flashes. Corberan has been rigid in his formations (which are less of a thing in modern football) or structure. Some players have been playing when perhaps their performances have not warranted their selection. The subs have come too late. And, most frustratingly for me on a personal level, the style of football - slow, chess-like - continues deep into the second half, when we need urgency and the ability to mix it up with direct balls to wingers or turning the opposition over quickly.
However, let's take a breath and look at the other side of the coin. Fans (me included) have called for others to be given a chance and players like MJ just have not produced. Even Callum Styles yesterday, who I wanted to start at LB to provide a further attacking impetus, I thought was poor. He was beaten far too easily from a defensive POV, looked fairly weak and his crossing was wayward. Hopefully he improves as, of course, he'll be rusty. And Devante Cole, who I would have given minutes to from the bench: Coberban sees him every single day and perhaps we need to trust that a player who has been fairly average throughout his career and perhaps the manager did not want, isn't quite up to it.
It's clear Corberan now needs to serious reflect and hopefully the change in results is coming. He deserves criticism, but for anybody to question his position as manager, for everything he has done for the club and the fact that we are sitting in 5th and could have won at least 2/3 of the last 6 on chances created is beyond me. He has to improve in areas of his management but did he miss Furlong's free header from 8 yards or Swift's easy pass into the bottom corner yesterday?
A frustrating time but some perspective is needed IMO.