Pay your tech people. It is truly that simple. If you can keep enough money flowing to pay people and keep the lights on, you proved your value. If you cannot, maybe you actually are just the idea guy.

You need to be asking yourself how you can make that happen. Sales is one way. Delivering investors is another. If you have your own money, spend it on the team. Because at the end of the day, you either deliver product or you deliver cash. If all you deliver is the idea, then expecting engineers to build it for free is unreasonable.