Girardi's "Set Roles" Costs Another Game

The situation last night: Dave Robertson came into the game in the 7th inning and faced one batter and struck him out (the box score will show 0.2 IP but one of those was a failed steal attempt).In a tie game in which you never know how many pitchers you might need, it made sense to send Robertson - who looked good and threw minimal pitches - out for the 8th. However, Robertson isn't the "8th Inning Guy™" so when the 8th started, Chamberlain was called upon. Besides the fact that it's an easy way to burn through a bullpen in a potential extra inning game, Chamberlain had terrible numbers against Kendrick who was due up in the 8th (.667 lifetime average).When a guy is pitching well and there's no reason to yank him - don't. Girardi's set roles (using his 8th Inning Guy™ in the 8th in a tie or with a lead, regardless of how the game is going, using Rivera only for th e9th and only in save situations instead of high leverage situations) is going ...