A more affable manager/man defo gets the benefit of the doubt with the run of results he has had there. Sounds like he lost the dressing room and I don't think it takes much to get on the wrong side of Edu and Fatty Boom Boom so he was done for.Think sometimes we as fans forget we have no clue what things are like behind the scenes.
Like with Koeman under us, he absolutely had to go. Not saying that's the case with Dyche, but its a consideration that's key that we have no judgement on.
Pereira will do exactly what he did at Wolves - Galvanise the squad into pulling handily clear of the relegation places, give everyone the confidence that the Good Times (TM) are back and then have a heinous start to next season before sacking him in Jan to be replaced by Marco Silva, who will probably have just been sacked by United or something mad like that.