Maybe it's a tautology but my answer to "If I only had _____ I would succeed" is "customers." This puts the onus on the "non-technical" founder to start selling

Maybe it's a tautology but my answer to "If I only had _____ I would succeed" is "customers." This puts the onus on the "non-technical" founder to start selling a very lightweight version of the product, what Eric Ries calls a "minimum viable product" instead of dreaming about how good it's going to be when a full team delivers the ultimate product.