Carnell Lake, until yesterday, had been with the Pittssburgh Steelers as their defensive backs coach since 2011, hired in order to replace Ray Horton, who had gotten the opportunity to be a defensive coordinator. Steelers fans have wanted Lake fired since about 2013.
It took a while, because his defenses ranked tops in the league in 2011 and 2012 in passing yards allowed per game. They also still had Ike Taylor, and 2011 was also the year that Keenan Lewis began to contribute in the nickel. He was a starter opposite Taylor in 2012.