Turnbow had a Marcel projection of 4.39 ERA this year with a pretty big statistical uncertainty (all relievers do, since their IP per year are relatively limited). He was also completely destroyed in the 6 1/3 innings he pitched this year. The average NL reliever had a 4.06 ERA, putting the projections for Turnbow firmly in the below average category. The Brewers also only had the rights to Turnbow though this yeara anyway, so even if turnbow got his stuff together and surprised everyone by being average, you aren't talking about very many innings anyway. The Brewers have McClung to be below average anyway (yes, I hopehe proves me wrong), so no big loss anyway. Bush had a Marcel projection of 4.55 ERA going into this year, with the average NL starter having a 4.65 ERA last year. Bush has also gotten off to a horrible start but with the injuries to Gallardo and Capuano and the dismissal of Vargas, there are no decent options (IMO) left to take over for him. Weaver has a Marcel projection of a 5.33 ERA, so a couple nice AAA starts is not going to convince me that he's gotten control of whatever troubles he's had over the last few years. Bush is by no means an option to get excited over (or Villy, Parra or Suppan right now). I just don't see any option better and I'm not compelled by the theory that if something isn't working, you just try random things until it does! In baseball, a couple starts tells you next to nothing with regard to expected future performance. As a result, you HAVE to rely heavily on past performance when making your best guess of future performance. but wouldn't each outing be considered an independent event and, thusly, not guarantee a regression to the mean? Nothing guarantees regression to the mean. It's only a "best guess". For a person with 0 IP, the best guess is league a league average player, so we regress him all the way to the mean. For a player with a lot of innings, while we still don't know his actual skill level with 100% certainty (we only would with an infinitely large sample) but we have a much more confident view of his true talent. As a result, we still regress his expected future performance towards the mean 9average pitcher), but to a much less amount than a player we know nothing about. That's all just performance analysis, though. If a pitcher all of sudden starts throwing 5 MPH slower, we'd be foolish to assume he has the same underlying skill. Same goes for a young pitcher who starts having a lot of success with a new pitch. True talent isn't necessarily static but we have to have a good reason to assume that it isn't. When Bush started the season with bad velocity and terrible command, I was concerned that he was injured, which would throw out all the previous performance expectations I had for him. While I haven't studied him too closely, he seems to be the "same old Bush" (for better or worse). As a result, I am forced to rely on his projection as a best guess of future performance. That's probably somewhere around a 4.6-4.7 ERA. While that's nothing to get excited about, I'm not sure if that even makes him the worst pitcher in the rotation right now. Rluz, can you give the math behind Bush having a 40% chance of winning when he pitches? What are you basing that on and what is the scale of ERA to chance of winning a game? What is Sheets chance of winning when he starts? I'm not sure if it's completely right but I'm simply plugging in a league average offense and bullpen into the Pythagorean equation. A 6 ERA pitcher has about a 40% chance of winning with that approach. That passes the smell test, since a a team with an average offense and bullpen have to have very bad starting pitching to still lose 60% of their games. What some don't seam to realize is that a team having a 40% chance to winning IS already very low. An entire team comprised of AAA players would still win something like 30% of their games. Here's a link to the Marcel projections with a brief description: http://www.tangotiger.net/marcel/