You can ad 2 to 3 guys to work with you before you'll need to worry about a lot of those things.
I'd personally train those two or three guys and when the time came to start another crew you'll know if some one from that group is ready to handle being team lead.
I'd personally train those two or three guys and when the time came to start another crew you'll know if some one from that group is ready to handle being team lead.