The new manager is the untried and untested Peter Jackson, who up until the weekend was playing as a centre-back with the Vauxhall Conference club Halifax Town. But Halifax are to report Huddersfield to the Football Association over their approach to Jackson, which they say was illegal.
The two men, who will work without contracts, take over at the First Division's club from Brian Horton, who was sacked as manager on Monday along with his backroom staff.
Bryan Richardson, the Coventry chairman, has asked the Football Association to show video evidence to referee Peter Jones, who sent off Dion Dublin at Blackburn 10 days ago.
Dublin was dismissed for violent conduct against Colin Hendry, but television pictures showed that there was no contact by the striker's arm. Hendry himself is apparently willing to speak on Dublin's behalf.
Walsall have escaped any action by the FA following two pitch invasions during their Coca-Cola Cup tie with Nottingham Forest at Bescot Stadium last month. A number of fans went onto the pitch to celebrate Andy Watson's winner in extra time and hundreds ran on again at the final whistle.
The Blackburn defender Gary Croft has signed a new four-year contract with the club.