The more I think about this, the more I think this would be a foolish move for the Jets because of the salary cap and large contract that NA will command. The Jets will have virtually no money to spend anywhere else and have a laundry list of free agents. Here are the main reasons why I don't think this is a good move for them:
1. The main benefit of having a Revis-type player is to take away the best receiver on the other team. By taking a Calvin Johnson or Larry Fitzgerald out of the picture, it forces the other team to beat you with their second option. Usually the difference between the second and third option is pretty negligible; for example, who is the Lions second best receiver? What about the Cardinals? This is a lot of money to pay a cornerback to take a team's second best WR out of the picture; there are plenty of CBs that could do this.
2. There is some strange myth out there that lining up these CBs can each cover an entire side of the field. Unfortunately, my understanding of measurements and physics does not corroborate this. Teams could simply put their two best WRs on the same side of the field, run bunch formations, or run 4-WR spreads (which is probably why the Pats got Ocho.) Not that that Revis/Asomugha wouldn't be nasty, but they represent 2/11 of the defense.
3. The Jets aren't in the position to make a luxury play like this. On the "cool" factor, this move would get high marks. On the reality factor, the Jets have tons of holes to fill. The Jets have failed to stock major positions through the draft, and their vitality is dependent on the free agency market. This move doesn't seem much different than many other free agent signings where one guy is supposedly going to make a team unstoppable. Even when the Pats got Moss in '07, let's remember that they already had the best QB in football, and also picked up Welker and Stallworth. That's the only time I've seen a player (Moss) live up to the Madden-like unstoppability that people fantasize about, but it wasn't all Moss either. One final point is that players switching teams as highly sought free agents tend to disappoint more frequently than guys in the same system for their career.
4. Although I realize Asomugha is a great player and would love to have him, his legend is certainly larger than his level of play. Yes, he may be the first or second best cornerback in the league, but this guy has gone from being a great CB to an all-world, immortal first-ballot Hall of Famer. I live in the Bay Area, and he has always been regarded as a great player, just nowhere near what he deified as now. I think his stock has shot through the roof because of the lack of attention and scrutiny, the hard-working player on a bottom feeding team. When he does get beat for a TD, no one notices. He's never been put under a microscope the way a player from NE, NY, Philly, or Dallas is. And by the way, he's 30 years old.
5. Once again, the Jets are one of few bidders on the market. This is their calling card, and then they are hailed as geniuses. Many teams could sign Asomugha by cutting players and restructuring contracts, but at what cost to the overall product they put on the field? Clearly NA has been evaluated by every GM and about 30 of them think the price tag is too high. This is the inherent problem with free agency. The player will always be valued at whatever the HIGHEST bidder thinks his value is, while most of the time his true value is somewhere in the middle. This is why "winning the sweepstakes" is always hailed as a coup at the time it happens, yet the winners always seem to be ultimately disappointed. You don't see teams like the Pats, Colts, or Steelers win many bidding wars for these guys.