Its just a team of the ICO's the whole part of the ico it will depends on them because the leadership must do better to have a succes campaign if the team not do teamwork for their company it will last and not succes and the participants maybe lost they gave their better and it will lost the succes of ICO depends on the team to manage it.
Yeah, if the leadership is zero, then the project is zero. I have seen so many projects that looked promising, gave good road map, and gave beautiful ideas and what happened at the end? They ended up a scam, dead or even at some point abandoned by the dev to its own fate.
The leadership and the team will always want to keep their reputations in check and would make sure they give investors the platform to make lot of bucks from believing in them enough to invest in the first place.