After 40 years managing designers, I have a diferent point of view.
First class designers are not gamblers. I do not know any reliable designer that will accept a risk condition and sustain the drive to commit himself aoo%.
Do not make such an error. Invest in design and your start up will give your expected future profit.
If you want to discuss my view, do not hesitate to call me.
My site www;marcarbranding.com