I think that this will be an interesting comparison to watch for the rest of the season. That is, what Gagne does for the Red Sox and what Joba does with us. So far:

Gagne: 5 G, 4 IP, 0-0, 1 BS, 10 H, 7 ER, 2 BB, 5 K, 15.75 ERA, 3.00 WHIP, .455 BAA
Joba: 2 G, 4 IP, 0-0, 1 H, 0 ER, 2 BB, 6 K, 0.00 ERA, 0.75 WHIP, .083 BAA