Here's an examination of one thing the New York Giants must do after their season-opening loss to the Lions in Detroit:
The Giants' plan Monday night was to shadow the Lions' top wide receiver, Calvin Johnson, with their top cornerback, Dominique Rodgers-Cromartie. They offered Rodgers-Cromartie safety help on some plays but asked him to single-cover the game's best wideout on others. This is why they signed Rodgers-Cromartie believing they could use him this way. The results, as you know by now, were not positive, as Johnson caught seven passes for 164 yards and two touchdowns.
Johnson is the toughest test there is, so there's no reason to think the Giants will move away from that "shadow the best WR" plan with Rodgers-Cromartie. But the next opponent on the Giants' schedule is the Arizona Cardinals, and they bring with them a talented corps of wide receivers without an obvious top candidate for the honor of "best."
Is it veteran Larry Fitzgerald, who's in the top 30 in NFL history in catches and receiving yards? Is it the emerging Michael Floyd, who had five catches for 119 yards in Arizona's opener late Monday night and was targeted seven times versus Fitzgerald's four? Could it even be electric rookie John Brown, who also saw more targets Monday (five) than Fitzgerald and caught the game-winning, 13-yard touchdown in the fourth quarter?
My guess is Floyd will be Rodgers-Cromartie's man if the Giants go the same way they did in Week 1. But the broader point here is the Giants need to be open to rethinking their coverage plan with their cornerbacks.
As my colleague Herm Edwards is fond of saying on air, "A plan that can't be changed is a bad plan." The Giants might have signed Rodgers-Cromartie under the belief he was a shutdown corner who could match up with top wide receivers, but the fact is he has not been that, consistently, throughout his career. Prince Amukamara showed some good things Monday night and remains a quality option, as does slot corner Walter Thurmond. The Giants obviously need to play better in zone coverage than they did Monday.
Cornerback is the strongest position group the Giants have, on paper, but it didn't look very strong Monday night. They might need to make some adjustments to the way they're deploying these guys if they want to get the best out of them the rest of the way.