Coventry City chief executive Paul Clouting has quit after just six months in the job at the Ricoh Arena.
Clouting, who had previously worked for Derby County and Ipswich Town, was appointed by Sky Blues owners SISU at the end of March.
His arrival came just days after the departure of chairman Ray Ranson.
Financially-troubled Coventry edged out of the Championship relegation zone to 19th thanks to Saturday's 1-0 home win over Nottingham Forest.
Ranson, who left City for personal reasons, was replaced as chairman by Ken Dulieu.
But Clouting has often been the public face of the board, as some fans have protested about what they believe to be a lack of investment in the team.
The club say Clouting wishes to pursue other career options and have thanked him for his hard work.
A cash injection from SISU at the end of March prevented the club from going into administration.
Coventry were then the subject of a takeover by Gary Hoffman in August, but .
The former Sky Blues vice-chairman, whose group were offering to invest £30m, had been seeking to buy the entire share capital of the club for £1.