Jam Miller didn't know if he was going to get drafted , but once he got the phone call from the New England Patriots, he was ready to get to work. The Alabama running back was taken with the 245th overall selection in the seventh round of this year's draft, and joins a room that already has Rhamondre Stevenson and TreVeyon Henderson in it. While Miller might not project to be a workhorse in New England this season , he has the opportunity to carve out a niche on the offense. A lot of that comes from his determination to make it work in whatever he's asked to do. Speaking to reporters after the Patriots' rookie minicamp last week, the 22-year-old Miller said he's open to doing whatever he can in the offense.…