Ligashesky lost his job Thursday following a poor season by the Steelers' kick-coverage units. They allowed four kickoff-return touchdowns, matching the 1998 Minnesota Vikings for the most permitted by an NFL team since 1994. The Steelers ranked 30th in kickoff coverage and 24th in punt-return coverage.
Until this week, Tomlin had made no changes to his coaching staff since it was assembled in 2007.
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