Rossum has consistently been a threat to provide us with excellent field position. That is the true purpose of a KR/PR, and that should be the primary gauge of his success.
Furthermore, he really is a threat to go all the way. Last year's opener showed us that. Granted it was last year, but he has only played one game so far this year, and he did well in return yardage in that game.
If we load up the team with players that frighten other teams but who are prone to fumbles, dropped balls, etc., then we will never win a championship.
A championship team mixes the riskier players (like Dre Bly, who will produce turnovers but also give up big plays on occasion) with consistent players like Allen Rossum (who will regularly provide good field position and occasionally break a big one for a score).
I say keep Rossum while developing his replacement down the road.
[ Edited by longtime49erfan on Sep 17, 2009 at 5:38 PM ]