All founders of a startup should bring something to the table and be able to carry their own weight. It doesn't matter if one founder has a clear edge in sellin

All founders of a startup should bring something to the table and be able to carry their own weight. It doesn't matter if one founder has a clear edge in selling a company if there is no company/product to sell due to a lack of founders with the knowledge and expertise required to make it. If it's very difficult to define the "execution edge"/value of someone then that person probably shouldn't be a founder, or the other founder(s) undervalue that person. In either case this should be a major red flag. I fully agree that being the idea man is a bad reason for unequal splits. I'd also be more optimistic about the chances of resolving that issue vs the issues related to an undervalued/incompetent founder.