Executive Dysfunction.
What that "dysfunction" seems to mean is that one is a lousy boss of oneself. A useful concept, I think. People who achieve their goals make rational, practical plans, follow their plans, and are good at taking orders from themselves. When they tell themelves they are going to do it, they do it.
If Plan A doesn't work, they already have Plan B waiting in the drawer.
I think people vary enormously in their executive functioning.