Maybe they're carrying slight knocks? Maybe he wants to rest them now and play them in the last games when they may be needed and so they're sharper come the playoffs?
Hasn't Murph just had rest? Flynn has been in and out a bit and may benefit from the game time or just isn't knackered.
And if he wants to get McNulty up to speed, then resting Done or Davies is the obvious option.
Realistically, we need one win out of four games, two to be sure, put Yeovil away and then the main job is to make sure we go into the playoffs with a fit squad. Our form is decent, we've shown we can bounce back after defeats and come back from losing positions. For once it would be good to go into the playoffs with our best eleven on the pitch.