<P> In 1988, the Bengals defense ranked 17th in the league, allowing 5,556 yards and 329 points during the regular season . Cincinnati had a superb defensive line, led by pro bowl defensive tackle Tim Krumrie, along with linemen Jim Skow (nine - and - a-half sacks), David Grant (five sacks), and Jason Buck (six sacks). Pro Bowl defensive backs Eric Thomas and David Fulcher (the world's biggest free safety) combined for 12 interceptions . The team won the AFC Central Division with a 12--4 record but lost Super Bowl XXIII to the San Francisco 49ers for the second time in franchise history . The following season, 1989, the Bengals defense was 15th in the NFL, an improvement of two spots and was in the top half of NFL defenses due to LeBeau's scheme . In 1990 and 1991 the Bengals' defense ranked 25th and 28th respectively, out of 28 teams, and the team made a change in defensive coordinators . </P> <P> LeBeau was hired by the Pittsburgh Steelers in 1992 as the secondary coach . In 1994, four defensive players were called to play in the 1995 Pro Bowl (Kevin Greene, Carnell Lake, Greg Lloyd and Rod Woodson). As a secondary coach LeBeau strongly influenced Lake and Woodson . </P> <P> In 1995, LeBeau was promoted to be the defensive coordinator and the 1995 Pittsburgh defense ranked third in the league in total yards allowed after they had finished as the second ranked defense in 1994 in that same category, so the drop off was minimal with LeBeau at the helm . They did allow 327 points in 1995 as opposed to 234 the year before when the Steelers defense was coordinated by Dom Capers, but they got to the Super Bowl in 1995 with a much improved offense . Pro Bowl linebacker Kevin Greene led the team in sacks with nine, while Pro Bowl linebacker Greg Lloyd led the team in tackles with 86 . The secondary was led by Pro Bowl defensive backs Carnell Lake and Hall of Famer Rod Woodson . The Steelers lost to the Dallas Cowboys in Super Bowl XXX, making it the third Super Bowl loss for him . </P> <P> In 1997, LeBeau returned to the Bengals as defensive coordinator . The defense was ranked 25th in 1996, and in his first year back they dropped to 28th and allowed just over 400 points . In 1998 they remained 28th in the NFL (of 30 teams) and allowed 452 points . In 1999 the zone blitz scheme began to take hold and although the Bengals defense allowed 460 points, they improved to 25th in the NFL (out of 31 teams). </P>

Who is the oldest assistant coach in the nfl