By Nick Wojton / Billswire.usatoday.com From year-to-year, season-to-season, NFL teams having plenty of tinkering to do. The Buffalo Bills are no exception. So far this offseason the Bills made made plenty of additions to shore-up their defense by adding defensive linemen Trent Murphy and Star Lotulelei via free agency and added the talents of linebacker … Continue reading B/R tabs Bills as NFL team with ‘most work left to do’ before 2018