Bill Polian is high on first-round running backs

In Bill Polian’s years as an NFL general manager, he spent first-round draft picks on running backs five times: Edgerrin James, Joseph Addai and Donald Brown with the Colts, Tim Biakabutuka with the Panthers and Ronnie Harmon with the Bills. Some of those picks were hits and some were misses, but Polian says he has…