sentences:  Kollar’s defensive line was instrumental in the Rams’ 2001 Super Bowl run as the club ranked third in the NFL in rush defense (85.9 ypg) while tying for the seventh-most sacks (45) in the league.Kollar then spent three years coaching the defensive line in Buffalo (2006-08), where he coached future All-Pro defensive tackle Kyle Williams and two-time Pro Bowl defensive end Aaron Schobel.Kollar joined the Houston Texans in 2009 and spent six years there, including his first five years as assistant head coach/defensive line.