In Kanban, lead time is a key performance indicator (KPI) that should be regularly monitored. Lead time measures the amount of time it takes for a work item to move from the start of the process to its completion. By monitoring lead time, the team lead can assess how efficiently work is flowing through the system and identify areas where bottlenecks or delays may be occurring. Reducing lead time is one of the primary goals in Kanban to improve overall process efficiency and delivery speed.