My concern with Ljujic is not so much what he does on the ball, but what he does off it. He's got a decent attackimg work rate, but his defensive cover/positioning is pretty suspect. Of course he could've been instructed?
I think Ljujic, Goran and Kalu are all used to European football and get frustrated with the lack of movement/understanding. You can see them visibly getting annoyed and looking for options that aren't there.
Cacace's a breath of fresh air, but needs to work on his positioning.
Singh's got great vision, but needs to bulk up and work on the weighting of his passes.
Both are excellent prospects and I really hope it comes with experience.
I'm not convinced by Doyle or Rogerson. Ridenton is hit and miss - he's obviously still learning, but some of his decision making is shocking.
And from putting "hit" and "miss" in the same sentence until the end of this season :-)