Doug Whaley: Marcell Dareus extension “priority No. 1″ after draft

The Bills recently extended the contract of defensive tackle Kyle Williams and they have plans to make more tweaks to deals for their talented defensive linemen. On the top of the docket is defensive tackle Marcell Dareus. The Bills exercised their fifth-year option on Dareus’s contract for the 2015 season, which leaves him set to make…