Posted by ESPN.com's Bill Williamson
OK, we checked out some of the underrated players in the division, now it is time to go to the other side -- who are the players who haven't lived up to expectations? Here's a look:
Denver: Dewayne Robertson, defensive tackle
Why: The former No. 4 overall draft pick by the Jets was traded for by Denver on the eve of the draft last year because it felt that he would be an impact player on the defensive line. He wasn't. He was just OK. Robertson has ability, but because of a big contract in 2009, he could very well be sent packing. With Denver moving to a 3-4 defense, Robertson could be moved to end.
Kansas City: Glenn Dorsey, defensive tackle
Why: It's a tad unfair because Dorsey has played in the NFL for just one season. He could become a very good player and I expect him to be. But the truth is, there were great expectations from the No. 5 overall pick in the draft and Dorsey had a very quiet rookie season. Many scouts thought he was the most NFL-ready player in the draft, but he was slow to develop.
Oakland: Tommy Kelly, defensive tackle
Why: Oakland raised eyebrows around the league when it re-signed Kelly to a more than $50 million, seven-year contract last winter. He was coming off a major knee injury. In his first year of the big deal, Kelly did little to warrant the big money. He was just average and wasn't a big-play performer.
San Diego: Antonio Cromartie, cornerback
Why: Cromartie had a miserable 2008 season which took the luster off of him. He was on the verge of becoming a household name after having 10 interceptions in 2007 and the team considered giving him a rich, new contract. Now, Cromartie, if he continues to tailspin, could eventually be replaced by 2008 first rounder Antoine Cason. Cromartie showed he has much work to do in coverage. Many people thought he was an elite cornerback because he had great interception numbers, but after he had just two picks and struggled in coverage in 2008, it will make people reconsider.