'"Departures will leave the Buffalo Bills depending an awful lot on rookies this year, and rookies don't always fulfill their potential right away (if ever)," Schatz said. "Two of last year's top three receivers are gone. Two of last year's top three cornerbacks are gone. And while LeSean McCoy is still around to keep the running game dangerous, Mike Gillislee was outstanding last year, and losing him really hurts Buffalo's depth."'