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The first overall pick in the 2006 NFL draft, Mario Williams has become one of the premier pass-rushers in a quarterback-driven league.

With his contract set to expire soon, Williams could hit the free agent market looking for a big payday and a return to the defensive line, where he is most comfortable.

I am not going to speak on exactly what drives Williams, but the money that Buffalo could pay, coupled with the potential move back to the defensive line (the Bills are moving back to a 4-3 front next year) could make for an enticing offer.

As for the Bills, the team posted atrocious numbers when it came to rushing the passer last year, notching just 29 sacks (27th in the NFL, for comparison's sake).

There is no question that the Bills need to bring in a premier pass-rusher, and with Williams being the No. 1 option on the market, Buffalo brass needs to get their salary cap-ologists in a room to make this move work.

Acquiring Williams would allow the team to make the full transition to a 4-3 defense.

Marcell Dareus was rated as a top-level 4-3 defensive tackle, and coupling his athleticism with Kyle Williams' beefy frame could make for one of the most disruptive interior lines in the game.

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Past that, placing Mario Williams on the outside edge to cause havoc would allow Shawn Merriman to play defensive end on the other side and not be the main focus in the pass rush, helping him return to form.

Behind the line, a linebacker crew composed of Kelvin Sheppard in the middle, with Nick Barnett and another player on the outside, could make for one of the best front sevens in football.

Williams is a dynamic game changer who has the ability to make or break a defensive scheme.

He may yet stay in Houston. For those of you looking to argue in the comments, know that I am aware the Texans will likely do everything in their power to keep their disruptive outside linebacker on hand.

However, I present an argument (a plea, really) for Buffalo brass to ponder.

Williams is one of the best defensive ends in the game, and in a division with Tom Brady and the possibility of major quarterback upgrades in New York and Miami, the Bills need to bring in a top-flight pass-rusher.

Williams is the guy.