I agree with you. It's extremely frustrating to see him getting sucked into the hole of the starting unit which has made no one effective except ZBo. I don't know what Joerger is trying to accomplish with his insistence of running the offense through ZBo. Even the use of WCS in the high post makes no sense. Yeah he's improved a lot in that area, but this isn't where he's the most strongest. The entire offense doesn't suit Fox at all. Just the pace itself becomes extremely slow when we try to set up ZBo.
However, aside from the offense-style, I feel like when Fox is given opportunities to attack and be aggressive, he chooses not to. I think he's hit a very early rookie wall which might be reflective of him being a long-term developmental player rather than instant star. He plays timid and indecisive compared to the first 5 games. But, could this be the result of playing in a ZBo-centered offense? He's struggled a lot in the 1/2 court. He's got lightning quickness, but doesn't know how to use it to his advantage.
If the hype weren't so big around him before the season started, I would be less critical. Look at Ntilikina. He was drafted being regarded as a raw developmental player. He's only averaging 5.8/3.3/1.4stls on 36/32/74, but it's been good based on the expectations set for him by the Knicks and media. Fox is a different story. He was being regarded as a star PG coming out the gates. He was considered to be the second coming of John Wall. The future face of this franchise.
Right now, I think we can all agree that Fox needs more time to develop. He's far from a sure-thing when you're talking about franchise player.