Well I want every touch to be calculated for error (attributes and contextual). If a player in real life tries to run in a straight line with the ball, he won't be able to do so (even if the error for good players might be very small) and he certainly won't be able to keep a constant speed unless he makes long touches every time.
I'll give my extreme example (for the 100th time). Put Usain Bolt in the game and he will be a great player. Why? Because unlike in the real world, he will have 100% perfect touches all the time. So even if he got a slight longer touch (that is always the same length) he will be able to sprint constant full speed. In real life he would be all over the place and often he'd have to slow down extremely to try to keep the ball at his feet.
In my personal opinion, the touch is what makes players unique. You have very fast lower league players but they lack in ball control, making their touches slow them down and/or loosing the ball because of a bad touch (too long for example so that a defender can get in).
Without these 100% perfect touches you wouldn't have these circular ice hockey like movement I think. Sure in some situations, but not all the time.