I told my manager that I'll be leaving in 3 months a couple weeks ago, so that he could be prepared and not include me in 2022 planning. He was sad, but understood. He tried to change my mind this week, but I told him that I'm not planning on staying.
But, now he's making me the manager of a few more people, and talking about projects for June of next year in our group meetings. He doesn't want me to share with the team yet (to avoid awkwardness and because our team dynamic is kind of delicate), but how do I onboard these new team members and try to do right by them, when I know I won't be here for much longer?