When they signed Asomugha, they thought they were getting one of the two or three best shutdown corners in the league. When he struggled last year, it was blamed on the way Juan Castillo was using him. Too much zone, not enough man-to-man. But he and Rodgers-Cromartie both have been used largely as press corners this season and the 6-2, 210-pound Asomugha is playing even worse than he did last year.