Williams, Bills are an ideal fit

Mario Williams provides a huge upgrade at defensive end for the Buffalo Bills. AP Photo/David J. Phillip

Mario Williams and the Buffalo Bills are as close to a perfect match as could possibly be found in free agency. The Bills have desperately needed an impact pass-rusher since Aaron Maybin fizzled out after being selected with the 11th overall pick in the 2009 draft, and they finished last season 27th in adjusted sack rate.