I think he's begining to mature a little even since the summer. When he drifted out of Celtic's team this season he got his head down and worked his way back into the team. A year ago I reckon he'd have handed in a request and have moved on. He was one of a couple of players that dragged Celtic back to a draw while 3-0 down against Kilmarnock. I believe he's developing a resilience and determination becoming of a professional footballer. To say Connolly, Heffernan and Daly are ahead of him in the pecking order is just facetious.
I have a feeling the 'tired' pullout from last summer was to do with family issues in the background. We all know well about his father and an unsavoury character as we might find his old man those issues would still effect him. I'd be willing to give him another chance in light of this.