Just to hit on a couple points. You say he is a panic acquisition? Except we have apparently been looking at targets for the past 4 months and have negotiated this deal well before deadline also, so quite the opposite of a desperate transfer, he was a target for the manager and credit where it is due, the board have seemingly went and got him.
Second, i love Besic. think has the potential to be a top midfielder, except you don't get to be a top midfielder if you only play 10 games a season because of injury. So 2 straight years of injury, you can't blame the manager for not relying on a player who has barely kicked a ball for 2 years?