"Loudest guy driven decisions — is when one guy is talking all the time about this new framework/lib/tech’s that he has no experience with, but talks about it a

"Loudest guy driven decisions — is when one guy is talking all the time about this new framework/lib/tech’s that he has no experience with, but talks about it all the time and finally the team decides to use it." Except that this is how new technologies get introduced and tried. It's a completely normal process. The only thing to pay attention to is the track record of these guys -- if they're mostly right, then they might have a good intuition when it comes to new tech.