Failures can share some of the same traits as successes. If certain factors always lead to failure, we won't be able to discover them by only studying successes.
Conventional beliefs yield conventional results. That's why newcomers have an innovation advantage - their thinking isn't constrained by years of industry experience.
Creativity is not a gift from God, and if you insist on seeing it that way, you're simply giving yourself an excuse not to try. Sometimes you have to take a chance.
Setting ROI as your primary filter means that you will discard a ton of potentially great ideas, because there is no way to prove (to the satisfaction of the CEO and CFO) in advance exactly what the return will be.
If you filter out new ideas based solely on whether they meet your financial projections, then you're going to miss some great, perhaps groundbreaking ideas. #innovation