Lotulelei's value isn't seen entirely in stats, considering he's tallied between 22 and 26 tackles in each of the last four years.
It turns out, that somewhere else is Buffalo, where Lotulelei will play for his old defensive coordinator and anchor a defensive line that was in desperate need of talent. Beane came to Buffalo from Carolina's front office. But Sean McDermott's club lasted only one game thanks to a frustrating 10-3 road loss to the Jacksonville Jaguars.
Defensive tackle was one of the Bills' biggest needs entering free agency, with only three players - Adolphus Washington, Marquavius Lewis and Rickey Hatley - under contract at the position for next season.
His future in Carolina was uncertain after the Panthers signed defensive tackle Kawann Short to a five-year, $80 million contract extension last off-season, and also used a first-round pick to draft Vernon Butler last year.
Lotulelei has recorded 141 tackles and 11.5 sacks in his career. Buffalo moved up nine spots in the first round by acquiring the Bengals' selection, 12th overall, as part of the Glenn trade.
Williams had a cameo role on offense in the team's season finale at Miami that they had to win to keep their playoff hopes alive when he plunged into the end zone from a yard out after lining up as a fullback.