The only way to build a winning team is to recruit and train people you believe can manage different parts of the ship without needing you to hand-hold them through every decision. This means thinking hard about how you can teach them to make their own decisions--instead of expecting them to turn to your individual expertise in every moment of need.
The secret to building a winning team in business is to hire, train them up, and then give them the tools to succeed on their own. Too many founders and leadership team members want to stay overly involved. They struggle to pass the torch and give other individuals decision-making responsibilities--because they think, in doing so, they'll end up replacing themselves.