Sorry but my head is still numb from trying to figure out Jack's rope work. I've watched players learn skill after skill, well through their thirties and on. Great thread with some really good points.
Skills have to be worked on and reinforced daily.
This work doesn't have to be done in a formal practice but is easily done at home in space less then 10x10. Juggling, footwork, just moving with a ball. Have to go before I get caught.