The situation with Potter had become unsustainable and everyone was mad about it, the fans did not liked Potter probably since the very beginning and the lack of results made this even worse, the players were skeptical and finally even the people at the top at Chelsea had to give in, and while late they had no other option, however this will make even harder to achieve victory on the Chelsea they will sustain with Real Madrid next week.
next week will be the toughest week for Chelsea because chelsea will travel to the bernabeu in the first leg of the quarter-finals. Chelsea are in a bad situation in the few matches they have played, especially this week Chelsea fired the coach again, of course in the next game Chelsea will be under the direction of Saltor who is Chelsea's interim coach.
it is likely that Real Madrid will benefit from Chelsea recent instability, even Real Madrid is not an arbitrary team in the ucl because it is so strong in every match. maybe the percentage of real madrid chances in the first leg to win the game will be bigger because their current squad has no injured players and all the core players are in pretty good condition like Benzema who is back sharp on the front lines.