I’ve seen a lot of job postings for a team lead developer, and I’ve always wondered why those positions wouldn’t be filled internally by default. I would never

I’ve seen a lot of job postings for a team lead developer, and I’ve always wondered why those positions wouldn’t be filled internally by default. I would never want to be in charge of a team whose project and code I had literally never seen before! How could you make any sort of decision without knowing the first thing about the technology or infrastructure?