For the third straight year, Pro Football Focus is ranking each roster in the league. Check out the 2015 rankings here, and the 2014 rankings here.

To determine the rankings, we took the past two years of PFF data and, giving the 2015 season more weight, averaged out the grades for each roster. Then we added a closer evaluation for added context, which allowed us, for example, to reward teams that have an excellent quarterback situation but a relative hole along the defensive line when it came to run defense.

We have also included a list of the top five players on each roster, plus a look at starters who aren't up to par.