I don't expect to see the best of Grezda or Barisic until next season, really. Their moves were the most disrupted by injury for those players coming in with no experience of British football.
I like the look of Grezda, but I do agree with those who say he needs to do more. The theory behind giving players a run of games is sound, but in practice you can't apply it. Grezda will have to take his chances when they come if he wants a run of games.
Sadly, I'm worried that he's the latest in a line of players I want to see do well that don't quite get there. Players like Beasley, Sionko, Pena, Buffel to some extent (more towards the end of his time with us) - I've found myself wanting them to play more and seemingly seeing something in them others don't.
Grezda was signed for 4 years, not 4 months. Plenty of time for him yet.