Seems a strange time to sack someone just before a game, so my guess is Dyche told them a few truths they didn't like hearing.
Like. You're **** and even I can't help you Or I dont like getting booed all the time Or Don Carlo told me to leave
They’re just the sort of noncey little team to play to their potential and win this then play like tarts next week and lose to Oxford or some ****e.