Roles, Teamwork and Improvement Support
Improvement succeeds through people and structure. Candidates should know the belt hierarchy: Yellow Belts contribute to and support improvement work, Green Belts lead projects part-time within their area, Black Belts lead complex projects full-time and coach others, Master Black Belts deploy strategy and develop belts. Sponsors/champions provide authority, resources, and remove barriers; they are not the day-to-day project lead. Process owners sustain the gains after handover. Confusing sponsor with team leader is a classic trap.
Effective teams pass through stages often described as forming, storming, norming, performing, and adjourning. A Yellow Belt may facilitate a small team, so understanding meeting discipline (clear purpose, agenda, roles, actions with owners and dates) and stakeholder engagement matters. Change management concepts include communicating the why, involving those affected, and anticipating resistance rather than ignoring it. Improvement is sustained through standard work, visual management, and training, not through enthusiasm alone.
Traps: assuming the Black Belt does all the data collection (Yellow Belts often gather and validate data in their own process); assuming the sponsor runs the project; treating 'control' as a one-off event rather than an ongoing ownership arrangement. Also remember ethics and data integrity: never adjust data to fit a conclusion.
Worked example: a Yellow Belt notices repeated late deliveries. She maps the process, collects baseline data, and presents findings to her sponsor, who authorises time and access. The Green Belt leads the DMAIC project; the process owner signs off new standard work at handover. Each role is distinct: support, lead, authorise, sustain.
Rule of thumb: ask 'who authorises, who leads, who does, who owns after?' to place any role in a scenario.