The idea is in fact the last thing I look at because if there is no experienced team, roadmap, whitepaper etc. The idea is itself useless, just an idea.
good point. If the project is lead by an inexperienced team or if the direction of the project is not articulated, then, no matter how good the idea is, the whole thing would appear unstable.
It's also important to consider the project leader(s) I think, they could have a great and experienced team of programmers, but someone usually needs to be in control making each aspect of a project work as expected..
otherwise, it might end like REQ(great programmers, not so much team leading?
)