I think that you hit it on the head and this is what took me eight years to realise. Growing the business is about building the team.
I always thought it was about great product, great design about moving mountains myself. It took me far, far too long to register that while you need all of those and you can certainly build a business solo, the key to growth is in creating a team. This is true on many, many different levels.
(Edited for consistency)