2 things 1) I don't believe major league teams probably see them as too similar when they've put up these numbers (ERA+): Lohse: 80, 105, 98, 89, 106, 78, 100 Silva: 120, 90, 112, 129, 75, 103 So Silva has had 3 seasons better than Lohse has ever had. If you look at last year, Silva was almost .5 better in ERA, and .13 better in WHIP. Most of that was due to the ballparks they played in, but that tends to get forgotten about, especially since Silva is given too much credit for playing against AL Central offenses. 2) From what I remember, Lohse rejected a contract from somebody earlier in the offseason because he wanted to get paid Silva money and didn't want to accept even good money if it was less. He waited a couple weeks too long, and everybody looking for pitching started to look for it in trades. Then he got left out there all winter and this is the result.