Chicago Cubs defeat Washington Nationals, 4-3

There's a big dilemma built into Carlos Zambrano's move to the bullpen.

If he pitches well, he makes it unnecessary to trade for another reliever. But if the Cubs don't push to acquire somebody, they could risk a disgruntled Z.

''They're looking for a setup man,'' Zambrano said, reiterating what he said last week, when he was promised the move was temporary. ''It's what they tell me. I don't think I will be too long in this role. But I will be there till they need me...

As the Cubs opened a seven-game homestand Monday, a blustery, cold night might have made it the ideal time to unveil their new-look pitching staff.

And the three-man Carlos Armada delivered in a 4-3, 10-inning victory against the suddenly not-crappy Washington Nationals at Wrigley Field.

Aramis Ramirez got the game-winning RBI with one out in the 10th on a bases-loaded walk.

Cubs starter Carlos Silva, making an impressive start to his Comeback Player of the Year b...