Pro Football Focus studies the teams that improved the most in their player grading from 2012 to 2013.
Khaled Elsayed of Pro Football Focus examines the players whose grades have improved the most from last season.
Khaled Elsayed of Pro Football Focus looks at the five best pass-rushing teams in the NFL by PFF's grades. The Kansas City Chiefs top the list.
Pro Football Focus explains why the Kansas City Chiefs might be in for a big improvement in 2013, despite their league-worst 2-14 finish in 2012.