Theismann: Redskins signing Manning would be “horrific idea”

Redskins fans seem understandably excited about the possibility of adding Peyton Manning this offseason. Perhaps the biggest fan of them all — former Redskins quarterback Joe Theismann — is not so excited. “It’s not a good idea, it’s not a bad idea — It’s a horrific idea,” he told 106.7 last week via DC SportsBog. ”It…