Working my way through my to-read pile (yay, I've made it to 2011!) and I've just found a really interesting article about whether a seasoned surgeon would benefit from having another experienced surgeon observe and coach him. It's a long read, but I recommend it. It discusses what it takes to be an elite performer in any discipline.
Anyway, this is probably an old cliché, but I'd never heard it before: "Expertise, as the formula goes, requires going from unconscious incompetence to conscious incompetence to conscious competence and finally to unconscious competence."
Or...first you suck and you don't know it, then you suck and you do know it, then if you really pay attention you can do work that doesn't suck and finally you are awesome without really having to think about it. I'll get to stage four some day, by cracky!