He made the Steelers defense famous and later coached the Browns.

He made the Steelers defense famous and later coached the Browns.
SARASOTA, Fla. (AP) -- Bud Carson, the innovative architect of Pittsburgh's "Steel Curtain" defense who later coached the Cleveland Browns, died Wednesday. He was 75.
Carson, who had been ill with emphysema, died at his home.
Carson was the Steelers' defensive coordinator from 1972-77, and shaped a defense led by Joe Greene, Jack Ham and Jack Lambert into one of the best in NFL history. During that time, the Steelers won two Super Bowl titles under coach Chuck Noll and would go on to win another two after Carson left.
Coached two years in Cleveland
He then became defensive coordinator of the Los Angeles Rams, who lost to the Steelers in the Super Bowl after the 1979 season. He coached the Browns in 1989-90, posting an 11-13-1 record in 11/2 seasons.
"He was a great, great coach here," Steelers chairman Dan Rooney said. "In fact, I might say he coached the best defense that ever played in the National Football League -- and I told him that one time after he left. They were a phenomenal team."
Carson's defense had a sustained run in 1976 that may never be equaled. After quarterback Terry Bradshaw was injured during a 1-4 start, the Steelers had five shutouts -- three in a row -- and allowed only 28 points while winning their final nine games.
"That was quite a feat," Rooney said.
That 1976 team failed to win a third consecutive Super Bowl after its two 1,000-yard running backs, Franco Harris and Rocky Bleier, were hurt in a 40-14 playoff rout of Baltimore and couldn't play in an AFC title game loss in Oakland.
Won AFC Central title
After Carson became a head coach, Cleveland won the AFC Central in his first season, beating Buffalo 34-30 in the playoffs before losing to Denver 37-21 in the AFC championship game. He was fired the next year when the team got off to a 2-7 start.
"Bud was an eccentric guy that we respected very much and as a result we played hard because we liked Bud," said former Browns wide receiver Brian Brennan. "We had an older team and Bud treated us like men, and because of that he got the most out of us."
Carson also coached Georgia Tech from 1967-71, posting a 27-27 record, including a win in the 1970 Sun Bowl, and was defensive coordinator for the New York Jets from 1985-88.