Revis is a shutdown corner that plays across from the No. 1 receiver on the other team on almost every play. Asomugha plays on the left side of the field on almost every play, regardless of where the other team's No. 1 guy is.
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Revis has a lot more targets than Asomugha does, though, which gives him a much higher chance of making plays. Obviously Revis is pitted against the No. 1 receiver, and most teams can't afford to totally let go of their No. 1 guy for a game. Revis had 111 targets last year vs. Asomugha's 28 targets.
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This idea isn't as crazy as it seems, because in reality the stats show that Asomugha isn't targeted as much because he doesn't stay on the No. 1 receiver every play. In Oakland Raiders games last year the No. 1 receiver from the opposing team was targeted over 110 times, with Asomugha being the covering corner for 15 of those passes.
The Jets opponents targeted their No. 1 receiver a little over 100 times, with Revis being the corner on 78 of those pass attempts. Teams tend to go at their No. 1 guy about the same amount of times for a season no matter who covers them, but if you know that they will not be lined up against the best corner then it is very possible that they would pass to him on plays in which he is mismatched.
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Asomugha, more often than not, is lined up against lesser receivers and is not targeted very often, because he is without doubt a good corner lined up against lesser receivers, but when teams did target him last year, quarterbacks had a passer rating of 98.1 versus a 32.3 rating against Revis, even with Revis usually being on the better receiver.
