ESPN's Len Pasquarelli reports there are whispers emanating from Washington that RB Clinton Portis isn't quite a perfect fit for the HC Joe Gibbs offense, which usually demands a power-type back. But a far bigger concern for the Redskins, who still figure to get about 1,400-1,500 yards from the third-year veteran obtained in the CB Champ Bailey trade, is the No. 2 tailback spot. None of the backups -- RB Ladell Betts, RB Sultan McCullough, RB Chad Morton or FB Rock Cartwright -- have been very impressive. Which explains why personnel chief Vinny Cerrato has been calling around checking on the status of veteran tailbacks who might be released this weekend. The 'Skins snooped around the possible availability of RB Garrison Hearst, with whom Cerrato is familiar from their stint together with the 49ers, but the Denver Broncos aren't likely to cut him now that RB Mike Anderson is sidelined for the season. Washington will take a long look at the waiver wire this weekend to see if there is a tailback better than the group it currently has behind Portis on the depth chart.