In her nice little book about how to become a great scrum master, Zuzana Šochová, sumarizes the responsibilites of a Scrum Master.
Scrum Master Responsibilities
- Teaching and mentoring
- Removing Impediments
- At the center of all: Observing
Any action, such a coaching, facilitation, teaching or removing impediments, can wait until it´s clear which approach is the best choice