Frequent/Unexpected Changes in team setup
Changes in team setup
Fluctuating team size
Absence of team members
Discovered by combination metrics:
Average Velocity and Throughput, when velocity dramatically changes without any evident signs of team's performance / productivity degradation
Lead and Cycle Time, when Max & Average Time increases without any blockers or suspended processes in delivery pipeline (Number of Open Work Stoppages)
Reaction/Resolution Target Fulfillment, when SLAs are not being met due to limited capacity or competency in the team