The reason the Phillies seem incapable of pulling themselves out of their tailspin can be summed up in two words: Jimmy Rollins.
Without Rollins they have no demonstrative on field, in the dugout or clubhouse leader. Chase Utley has always led by example and, frankly, the one he's been setting during this free fall has been poor in the field and at bat. Jimmy, on the other hand, can spark a team with his cheer leading, chattering and charged personality even when he is struggling at the plate.
Rollins brief return and second trip to the DL were the beginning of the end for the Phillies. If he returns shortly and stays healthy, we will see a turnaround. Guaranteed.