Sure, you can call someone up, but what good does that do you when you are out of bullpen arms and the game is going to extra innings? On day 1, you have Zambrano starting, then 10 people available to relieve him if necessary (not gonna need 'em). One game 2, you have Maddux starting and 9 people available for relief (not gonna happen). On game 3, you have Rusch/Williams starting, with 8 guys available for relief. At this point, everybody would have already had at least 2 off days. If, for some reason, you had to burn your pen in those first 3 games, then you can make a move or two. Most likely your pen will be perfectly fresh. So, you go into game 4 with 7 relievers available, maybe minus 1 or 2 guys who might have gone more than an inning the day before. Game 5, Zambrano, 7 relievers. Again, if at any point your pen has been trashed in one game, call guys up the next. But 7 relievers is more than enough to get you through a game. And both Williams and Rusch can be emergency longmen in games 1 or 2 if need be, with the other the emergency guy in game 3.