I don't get why the bullpen should be improved. It's a bullpen, filled with relievers, the most unreliable players in the game. And they haven't added an ace reliever. So there's no "should" about it. Maybe its the 22 home runs they both gave up. Gregg gave up more home runs than Zambrano (yes Z is hard to homer against but still Zambrano pitched 100 more innings last year) Or look at it this way Those 2 gave up the same amount of home runs as Guzman 8, Grabow 1, Marshall 10, Marmol 2, Maybe it was the 13 blown saves between them (rest of the team had 5) The 64 BB's Heilman was complete garbage last year no matter what anyone tries to make you think. He was good with none on but as soon as a runner got on, his ERA shot up nearly 3 runs, even higher with RISP and downright horrible with RISP and 2 out... Gregg, if you ignore the 9 homeruns he gave up with no one on was decent. Then as soon as a runner gets on base, his ERA rises nearly 6 runs and then up to a 22.00 era with RISP with 2 out. Heilman entered games with a total of 37 runners on base, 17 of those runners scored...