It doesn't really happen in practice, because no "visionary CEO" will say "we couldn't come up with a better idea than what we are doing now, so let's just call it a day in terms of exploring other ideas, and focus on this one product".
My current company is a retail company with both lots of physical locations and web shop/mobile app. We always try to come up with features that users can use in the physical stores, and those features get practically zero traction. Nobody is willing to say that the people who go to the stores, in a big percentage, won't use our apps, and the people who use the apps/web shop don't care about the physical stores. Every product person wants to combine these two, and I don't understand why.
(I guess, that's why I'm not in charge of business decisions :))