C. Williams is a expensive gamble, we need to get at least 2 good OL players in the draft and try to get lucky after other teams cut down.
"Reportedly last season Williams ranked as the lowest-rated player on the Rams roster and got graded at 74th out of 81 qualifying guards in the league. The guard got drafted with the 14th overall pick by the Chicago Bears in 2008 and never lived up to expectations. As a result got cut midway through the 2012 season."
http://theinscribermag.com/analyzing-bills-signing-chris-williams/