2017 depth chart preview: The Redskins' starters are set but identifying a
backup center likely will be a top priority for Jay Gruden and Bill Callahan.
After losing DeSean Jackson and Pierre Garçon in free agency, the Redskins
signed Terrelle Pryor. Washington hopes Pryor can offset a lot of that loss,
but how much?
Need to Know: Looking at Redskins whose fortunes have risen and fallen since
the end of 2016 season.