I do not think it is a good idea because the people building the project have no skin in the game. Your initial ideas need constant iteration as you interact w

I do not think it is a good idea because the people building the project have no skin in the game. Your initial ideas need constant iteration as you interact with reality to see what works. A team that will leave in a few months for the next thing have no incentive for iteration or great execution - both which are needed to interact with reality to find something that works.