Jets center Nick Mangold is very disappointed with the team over his lack of a new contract. "It's deeply disappointing," Mangold said Tuesday. "I've tried to do the right thing, on and off the field. I feel it's the Jets' turn. Not having the security of an extension is bothersome." Mangold has decided against skipping any of New York's mandatory workouts. He is entering the final year of his contract and due to make $3.3 million.