Question: Which NFL coach served as a linebackers coach for the San Francisco 49ers before being named interim head coach in their 60th season in the NFL?
Sentence (from "Mike Singletary"): In 2008, the 49ers promoted Singletary to the head coaching position after previous head coach Mike Nolan was fired during the season, and he remained in that position until he was fired after the 49ers were eliminated from the playoffs with one game remaining in the 2010 season.
Relevant evidence: No