Stoke City manager Johan Boskamp says he will leave the club at the end of June if the Potters do not get rid of director of football John Rudge.
Boskamp fell out with Rudge and assistant boss Jan de Koning during the match at Coventry on 2 November.
The row centres on a note which was allegedly passed by Rudge to De Koning.
"My contract ends on 30 June. Everyone knows the problems and I don't change my mind. I have my principles," Boskamp told BBC Radio Stoke.
Boskamp was appointed in June 2005 in place of the sacked Tony Pulis.
The Potters are currently 12th in the Championship table with 38 points, but are just three points behind a play-off spot.
Stoke chief executive Tony Scholes hopes Boskamp will stay beyond this season.
"The objective of the Stoke City Board of Directors when the managerial issue first arose last November was to avoid any further upheaval," Scholes said.
"That position has not changed and any further decisions made by the board will be made as and when they feel appropriate.
"Johan Boskamp is an honourable man and we are confident he will remain at the club until the summer at least.
"The players have been aware of the managerial issues since they first became public.
"They are professionals and have continued to do their job."