100 developers in isolation without product definition, project management, marketing, sales, etc. isn't going to prove fruitful. It would be like asking what

100 developers in isolation without product definition, project management, marketing, sales, etc. isn't going to prove fruitful. It would be like asking what 100 carpenters would work on, absent of an architect/project plans, plumbers (are those DBA's in this analogy?), electricians, roofers, realtors, etc. you're going to get a bunch of random walls, stairs and some framed structures. I would expect similar output from 100 devs - random bits of software. Depending on skills the easiest path to success might be to open a developer consultancy type of shop where they work on other people's projects.