I think to answer this question you should look at your experience with the team so far. You can be a leader without being a manager. Pick one of the issues you

I think to answer this question you should look at your experience with the team so far. You can be a leader without being a manager. Pick one of the issues you'd like to fix, like no tests. Can you educate/persuade/mentor your teammates now, as a tech lead, and improve the test coverage? If you can successfully do that as a tech lead, you will probably have success doing it as their manager. And if you can get folks interested in writing tests, they probably will see you as a natural choice for manager. The other thing to think about is if you want to be a manager day-to-day. Management is a completely different JOB. Remember, you are not rowing the boat, you are the captain of the team calling out the rhythm.