You're both right. The tradeoff you have to make: is the opportunity cost really worth it? If you're a big company and are greenfielding a new design, you eith

You're both right. The tradeoff you have to make: is the opportunity cost really worth it? If you're a big company and are greenfielding a new design, you either need a huge amount of buyin (eg we're going to go heads down for 8 months and come up with a solution) OR you need to build something that provides incrimental improvements along the way. It's really hard for a new greenfield system to compete on features with one with 5 years of features on it. If you don't have any users, it's far more valuable to demonstrate the business value as early as possible and then build a more scalable solution that's easier for a large team to manage once you've gotten a good chunk of funding.