I believe that Matt Winkleman has done the math on this...
Some other data:
The Phils have allowed 108 runs. They've scored 85.
Starters have allowed 66 runs in 148.1 innings - 4.01 R/9
Gomez, Neris, Hernandez, Hinojosa, Araujo, Bailey, Garcia and Murray have - collectively - allowed 15 runs in 66 innings - 2.05 R/9.
Brett Oberholtzer (15), James Russell (9), and Daniel Stumpf (3) have together allowed 27 runs, in 19 innings - 12.79 R/9.
It would seem like it's time, or very nearly time, to make a change. We need a long man in the bullpen - somebody who can pitch several innings at a time, every few days (not every day, not every other day, but every third day?), without being a punching bag.
Severino Gonzalez?