What Potter has done so far is quite encouraging for Chelsea and the decision to immediately replace they old coach is right to improve Chelsea's performance which was previously not good, but his current achievement is also supported by good players.
Chelsea have gone through a tough game even with a convincing score so it shouldn't be for another match make them fail to pass from the group stage, because what's interesting about this group is that so far there is no team that is certain to qualify to the next round
At least, Chelsea have bigger hopes after getting 7 points, than any other team. Previously, there was a lot of doubt that Potter would not be able to lead Chelsea in the direction of improvement. however, he was able to bring Chelsea in a direction of change and was quite satisfying even though it didn't really look very solid.
with Chelsea's current form, it shouldn't be something difficult to get full points in the rest of the next game.
bad luck for AC Milan, they have to fight hard to win the rest of the next match.