BUFFALO BILLS (7-9)

OPEN CAMP: July 27, St. John Fisher College, Pittsford, New York.

LAST YEAR: Coach Rex Ryan failed to deliver on vow to build bully and address high-priced under-performing defense, leaving owner Terry Pegula little choice but to fire him in final week of season. Sean McDermott was hired to replace Ryan, then GM Brandon Beane was hired to replace Doug Whaley, who was fired in April. Lost four of final five games, extending playoff drought to 17 seasons - longest active streak in North America's four professional sports. Defense allowed 240-plus yards rushing three times; generated combined six turnovers in final nine games; and allowed 29 straight points in final 20 minutes of 38-24 loss to Oakland on Dec. 4. LeSean McCoy-led running attack paced NFL in yards rushing for second consecutive season. QB Tyrod Taylor was inconsistent, while group of receivers were hampered by injuries. That included starter Sammy Watkins, who missed eight games with broken left foot.