Mike Shanahan wants you to get off his lawn

Redskins coach Mike Shanahan will not be following Steelers counterpart Mike Tomlin on Twitter so they can DM each other. In fact, the 60-year-old Shanahan said he’s only started using those new-fangled text messages recently, and does not have an e-mail account. “First of all, I’ve never been on Twitter,” Shanahan said, via Dan Steinberg…