Interesting article. I disagree with them that the bullpen itself has struggled though, since a good portion of the runs have been given up by the mop-up/filler guys.
Just for fun:
Janssen, Delabar, Cecil, Oliver, Loup: 24 earned runs in 92 innings
Rogers, Lincoln: 20 earned runs in 28 1/3 innings
dfa crew: 19 earned runs in 20 innings (Ortiz in relief, Storey, Gonzalez, Germano, Bush)
Other: 2 earned runs in 5 1/3 innings (Jeffress, Santos)