It is highly recommended that when seeking the highest caliber of event staffers in LA, you should always hire your professional event staffing services through a well-tenured and respected event staff company.
An agency assumes all of the risks when dealing with staffing for events. If there is an issue with work performance, attendance, accidents on the job, etc., the agency is the one that takes on all of those responsibilities and provides you with a solution to the issue immediately.
If you were to hire the event staffers in LA on your own, you would be the one who will have to deal with the many different kinds of situations that can arise when employing staff.