FOXBORO --- When the New England Patriots signed Dre'Mont Jones in free agency back in March, the team was getting a versatile defender. With experience off the edge and skills on the inside, Jones could be a nice flexible piece for the New England defense . Emphasis on the flexible part. Talking to reporters after the second week of voluntary offseason workouts, Jones mentioned that he's been doing yoga and Pilates as part of his workout regimen, something he first added last season. Coming off a career season where he had seven sacks and 24 quarterback hits between the Tennessee Titans and Baltimore Ravens, Jones hopes it can continue to improve his game. "I’ve done it a little bit in the past, but this year I’m really, like, attacking it because it helped," Jones said. "I saw how much it helped last year.…