When Brian Cashman acquired Kerry Wood this trade deadline, Jon Heyman posted at tweet that now makes him look like a genius. 
At the time, I doubted Heyman’s use of “great.” I was dead wrong. Wood has been nothing short of great with the Yankees, allowing just one run over 20-2/3 innings (0.44 ERA).
The rest of the bullpen has followed Wood’s lead since the All-Star break.
| Name | IP | ER | BB | K | ERA | WHIP |
| Kerry Wood | 20.2 | 1 | 11 | 24 | 0.44 | 1.06 |
| Joba Chamberlain | 26.0 | 8 | 7 | 26 | 2.77 | 1.04 |
| David Robertson | 24.0 | 4 | 11 | 31 | 1.50 | 1.08 |
| Mariano Rivera | 19.2 | 4 | 5 | 10 | 1.83 | 1.12 |
| Boone Logan | 18.1 | 2 | 6 | 23 | 0.98 | 0.93 |
A great bullpen is often the key to postseason success. But the Yankees’ starters and offense will have to hand the bullpen the lead in order for the bullpen to be successful.
