I don't have decades of programming experience. But with whatever limited experience I have I can tell you. Especially with software knowing what to do is the most difficult part, doing it isn't even a problem.

A product is ultimately a discovery which you have to do in iterations. It won't be until the last iterations you will know what to do. Once things are clear you don't a rock start to get things done, any one can do it now. Rock stars are needed speedup those iterations, do the discovery super fast and get the clarity.