Difficult to say at this stage, even though he has had two clean sheets, is more vocal and his distribution is better. He hasn't been seriously tested in three games yet and has also had a wobble or two (came out and caught in no-man's land on Saturday, to give one example). I don't think it would have been massively different with Easty there. Then again, the form Easty was in he may have done something monumentally asinine during this time as well.
In any case, the shirt is Stevens to lose for the rest of the season.