McLeish admits he faces a dilemma in terms of who to pick in goal after Maik Taylor's impressive performance when deputising for on-loan Joe Hart who was ineligible to face his parent club Manchester City.
He said: "It is a tough decision but managers have to make tough decisions and I've made plenty of tough ones before. At the end of the day I make the decision which is in the best interests of the club.
"Do I know who will play? I'll leave it until later. It is a dilemma. We are still talking about the pros and the cons of both.
"But one thing I don't want to do is get jittery about my decision-making in picking a keeper.
"If you start analysing every single mistake a keeper makes you could be chopping and changing every week.
"I know two years ago there were three keepers here and the three of them (Maik Taylor, Richard Kingson, Colin Doyle) all played within three weeks of each other.
"I don't want a situation developing like that."