Longtime Pittsburgh Steelers defensive coordinator Dick LeBeau has resigned.

LeBeau is the architect of the zone blitz.

LeBeau is a member of the Pro Football Hall of Fame.

"I had a great run in Pittsburgh," LeBeau said. "I'm grateful for all the things that have happened to me and thankful for all the support I had in Pittsburgh."

The Steelers issued a statement thanking LeBeau.

"We want to thank Dick for his many years of service with the team and all that he has done for this organization," Steelers coach Mike Tomlin said. "His coaching helped lead us to many successful seasons and championships. We are very appreciative of his efforts, and we wish him well."

The Steelers are expected to promote linebackers coach Keith Butler.

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Aaron Wilson covers the Ravens for The Baltimore Sun