Gregg Williams (born July 15, 1958) is the Assistant Head Coach - Defense of the Washington Redskins and the former head coach of the Buffalo Bills from 2001-2003. Though not successful as a head coach, he is widely viewed as one of the top defensive minds in football. Williams is known for crafting top-ranked defenses using "no-name" defensive players. Williams was an assistant coach for the University of Houston under former Redskins head coach, Jack Pardee. Wikipedia
The definitive Wikipedia entry for Gregg Williams. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Gregg_Williams