Not-for-profits view flexible volunteers as a burden rather than a resource because they focus on the short-term costs of managing flexible schedules rather than the long-term systemic benefits. Specifically, organizations worry that flexible volunteers will be unreliable, have unclear motivations, and require more work to utilize than value provided. They believe fixed volunteering schedules are less risky and better meet their direct needs for assistance. However, flexible volunteering could provide broader benefits if organizations considered volunteers' contributions from a more systemic perspective.