"I think this is going to work out for me and the Jets' organization," Cromartie said Friday. "I'm not going to let them down in any way."
"We felt like the risk was reasonable, given the price we had to pay," Jets general manager Mike Tannenbaum said, "and we really think he has some great years ahead of him."
Cromartie said he already was welcomed to the team by quarterback Mark Sanchez, among others. Cromartie will team with Darrelle Revis to give New York possibly the NFL's best cornerback tandem.
"I'm looking forward to that," Cromartie said. "I'm going to be on the other side of the No. 1 corner in the NFL. Just being next to him and working out with him during the offseason and getting ready going into the season is going to help out tremendously."
That means the league's top-ranked defense should be a lot tougher.
"He'll fit perfectly into our system," Ryan said. "Now we don't necessarily have to always put Revis on the toughest guy. We can switch it up."
Cromartie was considered one of the rising talents in the league in 2007, when he was an All-Pro in his second season after recording an NFL-leading 10 interceptions, but he has struggled since -- both on and off the field.
"None of us are perfect," Tannenbaum said. "We understand that there are some things that need to get resolved here. We just felt like the problems are fixable."
Cromartie's tackling has been an issue, as well as his attitude, but the cornerback vows to improve. He's also dealing with paternity issues: He has fathered seven children by women in five states.
"I made some wrong decisions in my first two years in the NFL and now I have to take on that responsibility of being a father to my kids," Cromartie said. "That's what I have to do."
Cromartie, 25, also had a bar patron claim that the cornerback hit him in the head with a champagne bottle hours after the Chargers' victory at Denver last November. San Diego police later said there wasn't enough evidence to prove the claim.
"I don't even know where that came from," Cromartie said. "I was just in the wrong place at the right time."
"I'm going to have a clear head this season and just go out and play football the way I know I'm capable of playing," Cromartie said. "The issues that everyone says are an issue are actually already being taken care of as we speak."
Cromartie has 15 interceptions in four seasons since being the 19th overall draft pick out of Florida State in 2006, but the Chargers were dissatisfied with the cornerback's performance late last season and in the playoffs. Chargers general manager A.J. Smith made it clear after the season that he would try to trade Cromartie.
One of Cromartie's low moments actually came against his new team in the playoffs in January. Cromartie froze as Jets running back Shonn Greene hit the hole at the start of a 53-yard touchdown run that gave New York a 10-point lead midway through the fourth quarter of a 17-14 win in the AFC divisional round. Cromartie eventually caught up to Greene and shoved him well after he'd crossed the goal line -- but the cornerback already had drawn the ire of fans and apparently the Chargers.
"It's something where I should've made the play on, honest," Cromartie said. "I was there to make a tackle for a 4-yard gain, and it didn't happen."
Cromartie acknowledged he's "not the best tackler out there," but he insisted he's working on that.
Despite the issues both on and off the field, Cromartie gives Ryan an athletic player with loads of potential. Cromartie prefers to play man-to-man coverage, something he'll have a chance to do in Ryan's defense.
Tannenbaum also said that being able to acquire Cromartie will give the Jets more flexibility in the draft next month. New York doesn't necessarily have to focus on a cornerback now with the 29th pick, but Tannenbaum added that Ryan likes having lots of depth at the position.
"We feel like we've improved the position, but by no means are we satisfied there," Tannenbaum said. "The more corners we have, as far as Rex can see, that's good."
Copyright 2010 by The Associated Press