No matter how excited and pumped you are for your event, it is highly unlikely that you can organize all of the details on your own.
Your 'Organizing Crew' is something that often comes together informally because of mutual interests in the event. Looking at the skills of the crew and matching them to the jobs that need doing is a good idea. Allocate clear roles to each individual within the team so everyone is aware of what they are responsible for and what is expected of them.
Some essential roles include:
1) Event Logistics Manager
2) Treasurer/Finance
3) Marketing and Promotions
4) Entertainment & Speakers
5) Volunteer Management
This list is a good place to begin but don't get discouraged if you don't have all of the roles filled or covered. Often when events are starting out, one person does more than one role...in fact this is usually the case!
Remember that your team needs to get something out of their roles as well, whether that is sense of ownership in the event or new skill set.