Sanguine Brilliant planning by Palace. Evidently De Boer was going to play different football to Big Sam, yet they've given him only four games (and truly only two awful performances) in which to turn it around. If you bring in a manager who is going to play a different style you surely have to accept that that style will take some time to impact on results. And, as said, they played pretty well at the weekend.
They've paniced basically. They've looked at the next 4 games and thought, we'll going to get to 8 games with 0 points and the season is essentially over.
Brought on their self though - you don't bring in a new manager who will have a new style and let him only bring in 2 loans and Sakho who was already really at the club and expect things to go brilliantly.