David Robertson is becoming a Yankee fan favorite. In the minds of the fans, he’s handsome, charitable, and always missing bats. In the minds of his opponents, he’s clever, got filthy stuff, and always missing bats. In my mind, he’s unsustainable. In 2011, David Robertson led the American League in ERA, K/9, was second in FIP, but also second in LOB%. For better or for worse, he appears to be the same pitcher in 2012 as he was last year.
Robertson’s one weakness stems from his inability to keep men off base. His 89.8% left on base percentage and .289 BABIP, compared to his career .320 BABIP, indicate just how lucky he was in 2011. While you might thiN. Robertson could be good enough to maintain these numbers, even the greatest reliever of all time and most clutch player in recent Yankee history, Mariano Rivera, has a career 80.1% LOB. Robertson is a well above-average relief pitcher, but due to below-average control issues, he finds himself with too many players on base.… Click here to read the rest