Doolan was able to select the same players, in a system that was working, for several consecutive games. For various reasons, he didn't really have many options in terms of substitutions. The strategy worked whilst they were scoring first, playing with confidence and keeping clean sheets. The test was always going to be when they conceded. Doolan really had to rely on the same, tired players, giving everything they had whilst remaining calm in the heat of battle. County had decent options to refresh their team, whilst Doolan's lads just ran out of steam. I'm sure most folk were amazed that Malky left Simon Murray on the bench for so long, so don't be too harsh on Doolan.