Celtic face Dundee United in a Scottish Cup replay this evening, which is a third match between the sides in a row.
They know a lot about each other, which leaves each manager under pressure to tweak things and make their side a bit more unpredictable.
Ronny Deila definitely has the edge at the moment, with confidence likely to be sky high in his team after the League Cup win.
The Tangerines will have a steely determination after losing last weekend and will have extra determination heading into the game.
One change Deila could consider for the game, which would be a curveball and something that Celtic’s opponents may not be expecting, is bringing striker Stefan Scepovic back into the side.
He’s been part of recent squads for the Bhoys and started the League Cup final on the bench and this could be a good time for him to start, allowing Deila the luxury of being able to give another player a rest.
Scepovic will be fresh and he will have a point to prove after Deila suggested he needed to show him certain changes were taking effect, before he came back into the side.
He can play on that extra motivation the player will have and the fact Dundee United haven’t got used to playing against him to try and force the side through to the next round.
He offers something a bit different to what the Tangerines have faced in recent games, which is significant.
It’s a risk because it’s a knockout game. If it goes wrong, Celtic could be out after a flat attacking performance which leaves Deila facing questions over his team selection.
However, if he gets it right, there’s every chance it could be a masterstroke by the Norwegian coach, which keeps all of Celtic’s players on their toes and competing for key places up front.