as many have suggested above, ICOs are already dying because most of them exited as scam. so most investors are now avoiding this type of crowdsourcing and go to more sure one which is IEO. but still, IEOs are now turning to a huge blunder because most of them also have downward trend in the market once they activated their trading right after IEO. so if in case you do want to invest, either in ICO or ICO, not only look for the team but their actual product or services. dont settle for MVP only, it is better if they have active working platform. in this regard, you can already have the hint of their capability to hit in the market by checking the feedback from their users
At the end of the day, this is the only thing that matters, scammers are going to make all kind of promises they know they will never fulfil because as long as they can get your money they do not care, IEOs were successful for a time but once scammers began releasing their coins in exchanges with a doubtful reputation it was over for that model as well.
So when people look at a new project the first thing they need to notice is if the developers have something to show for, if they do not then do not bother to invest with them, but if they do then there is a reasonable chance the project could turn out to be successful as they have advanced their vision without any funds and the money could be used to accelerate significantly the process of developing a project that becomes recognized in the market during the next years.