The tendency is to think ALL complex problems can be solved if I just have the right info, the right skill, the right people, the right resources, enough time etc etc. But for some problems the stars will not align. In those cases what do you do?
You have 2 option - 1. pick a Simpler problem where u do have the info, skill, resources, people, time to ensure the outcome is going to be positive 2. pick the complex problem but accept you are not going to solve it completely.