He didn't do his defensive work properly, got injured, never got back in the team, and has now seemingly gave up already and wants to go home.
Struggling to be bothered. Don't think he's particularly special.
2 from 5 have got to go with one of them being permanent realistically. Who knows. Maybe with a year away he might have come on enough to be third choice.
They only need to look at Middlesbrough for what happens when you rely on players from scotland that aren't obviously Celtic's best players. Strachan did that and it took them 6 years to undo the damage.