Scrum is team-focused. Fixation on optimum (individual people) resource utilization is a major obstacles for effective Scrum implementation. Doing Scrum right and deriving the benefits of team-focus that it has to offer requires full-time dedicated membership of all team members. A Scrum team should be delivering the highest value product of an organization. Having team members assigned to other projects at the same time means that the focus on delivering the highest value is being disrupted. Furthermore, a Scrum team needs to be able to establish and maintain a constant velocity from Sprint to Sprint. This is impossible to do if team members are being shared with other projects and/or teams. Also, there is tremendous waste associated with task switching that is eliminated by this single rule. The hang-ups of resource utilization need to be left behind if an organization is to mature into one that is Scrum team-focused.