DEVELOPER: A developer is someone who invented a particular project(coin)
TEAM: A team is a group of people that came together to backup the project to ensure success.
COMMUNITY: Community are people that subscribe into the project to ensure continuity by investing in it and also promoting the project.
A developer came up with the project,team working with developer to pick it up from there,then community decide the last part of the project.
Without a developer,we cannot have a project,Great team will surely influence the acceptability of a project,the end result depend on the community,then who is more important to the success of a project?
Talking about who is important to the development of cryptocurrency, i think all of them,the developer,team and community are important because each of them contributes immensely to the success of the project, without the developer the project wouldn't have commerce,also without the efforts of the team the project will not see the day and finally the community cannot left behind if the project wants massive awareness and adoption.