Ask HN: How do you strategize personal growth as an engineering manager?

I would like to hear how EMs consider personal growth is and how they plan towards that. I see myself ready to take on a larger team and manage managers myself. Of course, that itself is not enough, I need my manager to also feel that way. Generally speaking, there are two strategies, grow the team organically and then promote within or ask and have sister teams re-org and report to me. I am looking to primarily discuss the second option. I see a new manager created and they are hiring for themselves. I feel that that team really belongs under me as there is a large overlap with my team's functionality. Did anyone go about doing that? In general though, I would like to hear how EMs consider personal growth is and how they plan towards that.