Have a Great Surrounding Team
If you are ever in the position to hire people around you, hire great, not good. Don't hire out of need, hire out of the fact you just found someone who you really want to work with. A great team doesn't just do great work, but also supports one another intellectually and emotionally. It's a happiness chamber in that people inside the team along with the clients are all happy. The reinforcing mechanism is critical in larger organizations.
However, the most important thing a great surrounding team will provide you is what we are going to discuss next.