The Buffalo Bills take on the Detroit Lions Thursday night, wrapping up the Bills’ 2017 preseason. The Bills are carrying 83 players on their roster right now and will need to cut down to 53 come September 2nd. So while most people could care less about the final game of the preseason, there are still roster spots available for the taking. Let’s take a quick look at guys that have performed well so far. The highest-graded Bills offensive player per Pro Football Focus, Michael Ola (Raw grade +4.4), is one of those players vying for a roster spot. He has bounced around the offensive line so far this preseason, first starting at tackle, then playing some guard the last two games. He has done a good job climbing to the second level and on pulls, and it has shown in his PFF +3.6 run block grade (2nd highest on offense). https://streamable.com/8t2a8   Second round draft choice tackle Dion Dawkins is another offensive lineman that has bounced around the offensive line. Dawkins was supposed to unseat Jordan Mills at right tackle, but he has failed to do so thus far. With Cordy Glenn still nursing an injury, the staff played him at…