Survivor bias. Now go back and look at the list of pitchers that dropped out and simply aren't pitching anymore at that age. '98-Present fWAR leaders through age 30: http://www.fangraphs.com/leaders.aspx?pos=all&stats=sta&lg=all&qual=50&type=8&season=2014&month=0&season1=1998&ind=0&team=0&rost=0&age=17,30&filter=&players=0 Yes, he's been a very good pitcher through age 30. We're attempting to figure out how good he'll be through age 37. --- eta Holy crap, that list makes me think f pitchers over 30 Sabathia - arm dying if not dead Felix - hasn't passed 30 Verlander - arm dying Pedro - arm died @ 34 - 35 Greinke - ok so far, but still young Santana - arm died at 31 Vazquez - arm died at 34 Oswalt - arm died at 34 Halladay - arm died at 34 Buerhle - ok Kershaw - uh, yeah, still only 26! Haren - arm died at 31 Yeah, that list is not a compelling argument to sign Lester. Yeah. I want to not get nothing, but I really wouldn't mind if we just traded for a 28-year-old pitcher instead. The good thing about 28 year old pitchers is their arms never explode. If you're going to spend money on pitching, the injury risk is going to be there. Unless you want to go with the faith in Bosio plan and spend all the money on hitting.