At the start of last season, Dion Lewis was not near the top of the Patriots' running back depth chart. Mike Gillislee was the power back and James White was the receiving back, and that worked pretty well for the Pats early on. As the season moved along, however, Lewis slowly but surely took over more and more of the carries and the snaps. By the end of the year, he was getting a true feature-back workload. Eventually, he set a career high in carries, rushing yards, rushing touchdowns, and yards from scrimmage. Still, Lewis is now 27 years old and he's spent the balance of his career playing for a team that rotates its running backs more often than any team in the league. It's understandable that he'd want a more defined role as he moves into the final stretch of his career. So it should come as no surprise that Michael Giardi of NBC Sports Boston is reporting that Lewis is a "long shot" to stay with the Pats.