Well, still not as important as the starters despite what any TV talker says. The last run in a 6-5 game may make a dramatic video clip, but the other ten runs were about as important, as were the many unscored runs. Starters are announced in advance and change every game and still throw most of the innings - so they are better subjects for analysis by handicappers. But we know the bullpen will be used, and that the effectiveness of the closer could be the difference between a winner and a loser in the game. We are going to focus on most of the current closers, and try to list the opponents against whom they are at their best or worst.
Managers seem to have two bullpen teams.
But these roles are fluid, and a couple of good outings can push a B type to the A team, while a few bad innings can get an A guy demoted. Bullpen closers vary, and some are better with a lot of work than others. Generally, managers should not use the closer more than three consecutive days, and should not leave him unused for more than four days. Most of our conclusions below are based on records longer than one season, and in a few cases starting work is included. Main, but not the only, sources are 2001 team media guides.