While you may be offered reduction of clinical shifts, the extra time you spend on other duties will probably far outweigh this. And, in any case, reduced clinical time translates to reduced clinical exposure which translates to reduced clinical skill. An increase overall in time spent on administrative issues translates to reduced time to read and expand one's own knowledge base. So the time commitment may have far reaching consequences. In addition to time, the job can wear on your soul.
Scheduling is cited by nearly one half of chief residents as the worst part of the job.
It not only entails many hours of hard work but frequently earns the animosity of peers. Being chief resident in emergency medicine is a unique and wonderful opportunity. You will learn about education, administration, negotiation, conflict resolution and scheduling. You will learn about your colleagues. You will learn about yourself.