'“Ryan is in his second year with the club, and the decision to hire his brother Rob as defensive (coach) has not been well received. Rex Ryan made significant changes to his staff after a 2015 season in which the Bills fell well short of the coach’s playoff talk, and that bled into this season, when offensive coordinator Greg Roman was fired mere weeks into the season. The Bills’ passing game remains limited, and the secondary — thought to be one of the team’s strengths — has struggled while top-paid defenders like Marcell Dareus and Jerry Hughes have slumped or been absent, injured or suspended.