Having lost at least 10 games for the second consecutive season, Redskins coach Mike Shanahan admitted Monday the rebuilding project he took on was a more difficult task than he expected. "A lot longer than I first anticipated," Shanahan said. "We had less depth than I thought. We were a little bit older at a few different positions. I thought we might keep those players a little longer than we did." Since he took command of the Redskins in January 2010, Shanahan has overhauled the aging roster he inherited from Jim Zorn. Only 12 of the 53 current active players ever suited up for the Redskins before his arrival. And yet, Washington has clinched a fourth straight last-place finish, a first in the NFC East's 42-year history.