Allan Johnston: Kilmarnock boss to leave at end of the season
Kilmarnock manager Allan Johnston has made a surprise announcement he will leave his post in the summer.
The 41-year-old "just made my mind up before I came in" to a press conference ahead of Saturday's game with Hamilton.
He said the sale of Robbie Muirhead to Dundee United on Monday was a factor behind his decision.
"I never found out Robbie was away until five past 12 [on deadline day]. Stuff like that, it is not the way things are done," he said.
The Ayrshire side sold 18-year-old Muirhead to Scottish Premiership rivals United for £150,000 plus add-ons.
Asked about the departure of the Scotland Under-19 player, Johnston said: "There is a number of things but that certainly doesn't make your job any easier.
"It was really difficult to arrive at the decision [to leave]. It is not something you want to do.
"I trust in the players I have got but I think it is the best decision for myself and the club.
"There is a new chairman coming in and I think it is important that there is a freshness about the club and it is time to move on anyway."
Kilmarnock sit eighth in the Premiership, six points adrift of a top-six place with a game in hand, and 10 clear of the relegation zone.
Johnston added: "It is disappointing but there is still a job to be done between now and the end of the season.
"Until then I will give 110%. It is a good club and it is important we finish the season strongly."
A statement on the Kilmarnock website said the board would "now convene to consider their options".