What if everyone had a transparent and agile exit strategy?

What if everyone on a team semi-annually shared their latest version of what they want to go to next, when (if they have a sense of that) and why?

Wouldn't this happen in a culture of integrity, translated as adult transparency, contrasted to adolescent passive aggressive non-transparency? What if people leaving or changing was anticipated rather than a surprise? Would it allow teams to enjoy better proactivity and continuity? Could it help the team better support everyone's growth dreams and intentions?

Would people paradoxically feel a greater sense of commitment to a tribe committed to their growth?