I think that developers are the most important part of the project. If their work is successful then there is a chance that they will be able to create a product that will have an application. I think that developers are more important than marketing.
i will have to disagree.. with the tutorials and youtube vids.. anyone can "develop" a new altcoin by cloning. what it comes to is the team and community. with out a team no one to do the leg work. without a community no one to use the coin.