Bills quarterback Ryan Fitzpatrick has been working with coach David Lee on his throwing mechanics this offseason. The quarterbacks coach is known as a master at fixing flaws in passing mechanics. "I was expecting that," Fitzpatrick said. "I knew that he was a technician and a hard worker. Everybody told me about his work ethic and how passionate he is about football so I was excited for it. "He's a big proponent of just being able to throw with your lower body. Sometimes when you get closed off as a thrower with your front foot in terms of where it's pointed where you can't get your hip through and use your legs it becomes a throw with all arm and you lose a lot of power."

The Buffalo Bills received approval from the NFL on Tuesday to strike a deal to extend their series of games in Toronto. A contract between the Bills and Rogers Communications still must be finalized, but it's expected the Bills will agree to make a regular-season appearance in Toronto for five more years, through 2017.

In his final season with the Texans, Mario Williams moved from defensive end to outside linebacker. Dan Pompeii of the National Football Post writes that Williams asked to move back to his original position with the Bills. Williams played left end at North Carolina State.

The Bills have signed first-round pick Stephon Gilmore to a four-year deal. The cornerback is ready to compete for a starting job after inking the $12 million contract. Listed at 6-foot-1 and 190 pounds, Gilmore was drafted 10th overall after a three-year career at South Carolina. The contract includes an option for fifth year.

The Buffalo Bills' bid to extend their series of playing regular-season games in Toronto could take a big step forward this month. NFL spokesman Michael Signora said that the Toronto series will be on the NFL International Committee's agenda for its next meeting. The meeting is scheduled to take place this month, but no date has been set.

Former Bills general manager Bill Polian has been selected to become the latest member of the team's Wall of Fame. Polian, currently an NFL analyst for ESPN, will become the 28th member placed on the wall that rings Ralph Wilson Stadium. The Bills have not yet selected when Polian will be honored.

As part of his recent contract agreement with the Bills, running back Fred Jackson will only earn $3 million in guaranteed money. That $3 million comes in the form of his signing bonus, not another penny is guaranteed. Jackson also gets a $100,000 roster bonus on the fifth day of the league year (which he may have already received), along with a $100,00 workout bonus. He's due to earn a base salary of $2.205 million in 2012. He'll get an extra $100,000 if he makes it to the Pro Bowl. Next year, Jackson is due to receive a base salary of $2.15 million, along with a roster bonus of $300,000 on the fifth day of the league year.

Vince Young has agreed to a one-year, $2 million deal with the Bills, according to league sources. The quarterback can earn another $1 million in incentives. He is expected to join the team Monday. Young, in a statement released Friday afternoon, thanked general manager Buddy Nix and coach Chan Gailey. "I am looking forward to playing with the guys and helping where I am needed," Young said. "I have always respected the Bills organization and I am looking forward to being a part of the team."

The Bills have rewarded running back Fred Jackson by signing him to a two-year contract extension that's potentially worth $9 million. Jackson had one year left on his existing contract and is now signed through the 2014 season. He has led the Bills in rushing in each of the past three seasons.

The Bills have released Drayton Florence. Buffalo spent much of the offseason improving what has been a porous defense. Florence is a nine-year NFL veteran who had 45 starts in 46 games during a three-year stint with the Bills. He had two years left on his contract and was scheduled to make a base salary of $4 million this season.