The latter part of that article is what many have been talking about here now since Oct.
There is a distinct rhythm for good OCs. We don't seem to have it week in and week out.
We saw glimpse Sunday, first drive.
One of the most memorable aspects of SP play calling was getting out the huddle, to the line with 15 to 17 sec. Play after play. Mechanical almost. But it creates a rhythm for offense and stress for defenses. The other was his ability to "see" moves ahead. If I do this, the defense will react with this look. Then, I adjust x or y route during week, and if that look comes, we run this way.
Sigh. Miss those days.
I think the marriage between OC and QB is paramount. OC has to adjust to what his QB can/cannot do well. Early on, it felt as if PC was trying to mold Carr into what he wanted. And it wasn't working.