Ideally the student needs to learn to conceive groups of short notes as having a destination that is part of the same conception as the short notes and pace things so they never run out notes before getting there.
Or you can liken this concept to a guy slam dunking a basketball. He's up, he's flying in the air, and his destination is putting the ball through the hoop. Maybe putting a golf ball would be better; rolling over the green and into the hole. Imagery usually always works.
Careful here. You are dangerously close to recommending the "inner game of tennis" approach, focusing on the goal and ignoring the process.The reason to be careful is that this approach works very very well for some students, especially the more talented ones, and NOT AT ALL for some of us. I strongly suspect though I can't prove it that this difference in learning style is hardwired in the brain and pretty much fixed.