^^^Oscar, Just in case you missed it amongst all the stuff that has been filling up the thread, I have reposted my questions here...
Some interesting points Oscar, thanks for sharing your ideas.
Just on the points above, I have heard many times the phrase "tennis is a game of emergencies", but I have always thought that makes it sound like a passive game for the player it refers to - in other words you have to just deal with what the opponent sends you. Personally I prefer players to think about what they can create rather than what they cope with.
When you refer to "footwork" do you in fact mean "movement"? I feel there is a difference between the two. From what I have read of your work and the stuff I have done with Andy and John over here, I think you mean movement to the ball should come naturally. There are a couple of specific footwork patterns which can be anything but natural which are essential skills for high level tennis, which need to be taught in my opinion.
Would be interested to hear your thoughts.