His freshmen position is pretty clear,
He plays the ones that are more ready (Hawkins, Bouknight, Sanogo, Akok) and ones that are especially needed (Gaffney after Gilbert struggles, Jackson after Bouk injury and Adams struggles).
If Polley and Gilbert continue to struggle, he will make moves. But he's going to stick with who he thinks are his best and most experienced players until they demonstrate conclusively to him that they're worse than a raw freshman. He's not as reactive as the Boneyard (which makes sense, he sees a bigger sample of their play), but he does make changes.