Harden put up a line of 4-3, 2.55 ERA, 12 GS , 67 IP, 1.119 WHIP, 11.8 SO/9 in the second half last year. We don't have anyone on the roster that is going to replace Harden (Gorzo, Silva, Samardzija, Marshall) that is capable of pitching that well over the course of a half a season On the flipside, Harden had a 5.47 ERA with a 1.541 WHIP and a 10.1 K/9 in the first half (seven more innings too). Most any of our starters can better those numbers significantly. Not the guys who are the top candidates to replace him. Carlos Silva career as a starter: 52-63, 4.90 ERA, 159 GS, 1.410 WHIP, 3.6 K/9 Jeff Samardzija career as starter MLB (sample size): 0-2, 10.80 ERA, 2 GS, 1.680 WHIP, 7.6 K/9 Jeff Samardzija overall MLB pitching stats (62 IP, 46 G): 2-3, 5.20 ERA, 1.604 WHIP, 6.6 K/9 Jeff Samardzija MILB career stats (71 of 77 games as a starter): 20-25, 4.28 ERA, 71 GS, 1.447 WHIP, 5.7 K/9 Tom Gorzelanny career as starter: 26-27, 4.78 ERA, 72 GS, 1.500 WHIP, 6.2 K/9 Silva and Gorzo yearly logs as starters: Silva (2009): 1-3, 8.48 ERA, 6 GS, 28.2 IP, 1.640 WHIP, 3.1 K/9 Silva (2008): 4-15, 6.46 ERA, 28 GS, 153 IP, 1.598 WHIP, 4.1 K/9 Silva (2007): 13-14, 4.19 ERA, 33 GS, 202 IP, 1.312 WHIP, 4 K/9 Silva (2006): 11-15, 6.13 ERA, 31 GS, 173.1 IP, 1.546 WHIP, 3.4 K/9 Silva (2005): 9-8, 3.44 ERA, 27 GS, 188.1 IP, 1.173 WHIP, 3.4 K/9 Silva (2004): 14-8, 4.21 ERA, 33 GS, 203 IP, 1.429 WHIP, 3.4 K/9 Gorzelanny (2009): 4-2, 5.40 ERA, 7 GS, 31.2 IP, 1.421 WHIP, 10.2 K/9 Gorzelanny (2008): 6-9, 6.66 ERA, 21 GS, 105.1 IP, 1.804 WHIP, 5.7 K/9 Gorzelanny (2007): 14-10, 3.88 ERA, 32 GS, 201.2 IP, 1.398 WHIP, 6 K/9 Gorzelanny (2006): 2-5, 3.79 ERA, 11 GS, 61.2 IP, 1.315 WHIP, 5.8 K/9 It seems odd to me that you wouldn't include Marshall in that group... If I were a betting man, I'd bet on Marshall starting more games next season than Silva. And the only way I think I would be wrong is if Silva somehow turns things around and actually deserves to be starting more games in which case, the Cubs would be doing okay. I think Marshall will end up in the bullpen to provide long relief work, emergency spot starts, and be another lefty option. Silva is going to start the season in the rotation most likely given his salary... Then probably a toss up between Gorzo and Shark for the #5 spot to replace Lilly. Marshall has had more success in the bullpen and looked pretty good last year coming out and I think he stays there.