I never really got it with Xhaka, seemed like an decent player who had the odd blinder here and there but overall pretty average and as we've learnt comes with some fatal flaws - stinking attitude, foul temprament and a propensity to give the ball away cheaply in dangerous areas.
If he is a leader in the dressing room he certainly doesnt show it on the pitch.
In all honesty should have been offloaded ages ago, our failure to do this is, quite frankly, a mystery.