With Niko's arrival came high expectations. Go back and read the volumes of posts confirming it. Compare that to Ben when he was hired as once fans got over the initial shock the majority realized it would be a slow build, at best.
Unlike Ben, Niko is a proven commodity and along with it comes higher expectations. The issue thus far seems to be the lack of quality players, not Niko. And its starting to show. But this is his squad.
We will know more after the next few weeks as the level of competition rises.