The ScrumMaster is focused on two main goals: to remove obstacles of all sizes and to help the team become better at using Scrum. Both of these jobs require much work and plenty of skill. To do this well the ScrumMaster will need to refrain from doing hands-on technical work. If the ScrumMaster does this then the team will be protected from interruptions, move faster, and feel supported. If the ScrumMaster doesn’t do this then the team will be interrupted often, become slow, and feel unsafe and in harms way. A ScrumMaster doing hands-on technical is wasteful and distracting.
To learn more about ScrumMasters, visit the Scrum Team Assessment.