Baseball Prospectus chimes in on the Sisco debate - "Best VORP of any reliever in baseball? That’s right: Kansas City Rule-Fiver Andy Sisco." For non-BP readers, Value Over Replacement Player (VORP) measures the impact a player has had versus a theoretically available league average pick-up. In short, he's the most valuable reliever in this short sample. Also of note: Sisco's VORP exceeds that of one of the starting pitchers on his team. Of the 2 other teams to sport such a dubious honor - the Cubs with Glendon Rusch outdoing Zambrano. Now that one I do not follow? http://www.baseballprospectus.com/article.php?articleid=3993