Caretaker boss Paul McDonald will take charge of Kilmarnock for the first time when they take on Partick Thistle on Saturday, Press Association Sport understands.
The Killie youth academy chief has been put in charge of first-team matters while the Rugby Park board step up their search for Lee McCulloch's replacement.
McCulloch agreed to step down as manager following last month's loss to Ross County - a result that leaves Kilmarnock bottom of the Ladbrokes Premiership table without a win from eight games so far.
Read more: Stewart Fisher: Kilmarnock appear to be in a permanent state of crisis
The international break has given the club additional time to find a new boss but with an appointment still some way off McDonald will be in the dugout for this weekend's trip to the Energy Check Stadium at Firhill.
The former Hamilton defender will be assisted by the club's under-20s boss Andy Millen and striker Kris Boyd.
Director Billy Bowie is leading the hunt for McCulloch's successor and has already met with former West Brom and Reading manager Steve Clarke.
Mixu Paatelainen - who had a successful 10-month stint as Kilmarnock boss during the 2010-11 season - has also been interviewed, as has former Killie midfielder Gary Holt.
Recently sacked Ross County boss Jim McIntyre and former Portugal international Jorge Costa are also being considered from the "50 or so" applications the club has received so far.
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