**Safety Kenny Vaccaro did not practice Thursday due to an injured groin, so he may not play. Something to keep an eye on come Sunday morning.**   Quarterback Drew Brees is a household name on offense, and he is still commanding one of the most dangerous attacks in the NFL. But the defensive turnaround in New Orleans is what has led many to believe that the Saints are truly a Super Bowl contender. After scouring through four games worth of defensive film, I came across some areas that the Bills could attack with some success. To start, the Bills need to get LeSean McCoy and this offensive line back on track. Buffalo’s offensive line should be able to create some lanes for Shady, and that plan of attack should start squarely between the tackles. According to Sharp Football Stats, over the last four games the Saints have given up a healthy dose per carry inside to opposing rushers.   Specifically, offenses have executed power runs off the left side, and New Orleans’ opponents have gotten three explosive runs by utilizing this concept. https://youtu.be/Swx1wWjZc0Q   In the passing game Buffalo should get some advantageous looks against safety Kenny Vaccaro. He has played really…