Esmerling Vasquez became the 12th starting pitcher tried by the Twins this season, a number that still could grow during September auditions. The rotation's struggles in 2012 have frustrated Twins' leadership and the fan base.
Another thing it has done: made us think twice about all of those decent-to-pretty good starting pitchers Twins fans might have taken for granted in the preceding decade or so. Johan Santana was a bona fide ace for many seasons, and Francisco Liriano electrified everyone in 2006. These guys, though, provided rotation stability in many seasons -- often in unheralded fashion or even despite grumbles from fans:
• Brad Radke: His first-inning struggles drove Twins backers crazy. But during the team's return to winning ways from 2001 until his retirement in 2006, Radke was 70-55 with a 4.11 ERA, averaging 30 starts per season.
• Eric Milton: Won 28 games combined in 2001 and 2002 and was even an All-Star in 2001 before an injury-plagued 2003 season and an eventual trade to the Phillies after that season.
• Kyle Lohse: Won 45 games from 2002 to '05, starting an average of 32 games during that span. His 4.61 ERA during that stretch wasn't exactly stellar; compared with the 5.43 ERA posted by Twins starters this season (entering play Sunday), however, it looks far more decent.
• Rick Reed: Had ony one good season here, but it was prototypical mid-rotation stuff: 15-7 and a 3.78 ERA in 188 innings in 2002.
• Kenny Rogers: Remember how in Rogers' one season with the Twins (13 wins, 31 starts in 2003) he was their fifth starter? Those were the days.
• Carlos Silva: He gave up what seemed like a million hits, but he also ate innings and gave the Twins a chance to win in a lot of ballgames between 2004 and 2007. During that stretch, he was 47-45 with a 4.42 ERA while averaging 193 innings and 31 starts per season.