Team Development and Mastery Models

PMI-ACP tests three separate "stages of growth" models, and the most common exam trap is mixing them up — they answer different questions. Tuckman describes how a team develops as a group. Shu-Ha-Ri and the Dreyfus model describe how an individual develops mastery of a skill or practice. A team can be early in Tuckman's stages while individual members are personally Expert in Dreyfus terms — the two are evaluated separately.

Tuckman's model — Forming (polite, low visible conflict, roles unclear — leader style: Directing), Storming (real conflict surfaces as roles and approaches get contested — leader style: Coaching), Norming (roles settle, trust starts building, the team finds its own working rhythm — leader style: Facilitating/Supporting), Performing (high trust, self-organizing, the team resolves most things without the leader — leader style: Delegating), Adjourning (the team disbands, often after a release or project close — the leader's role shifts to recognizing contributions and supporting the transition).

Shu-Ha-Ri — borrowed from Japanese martial arts to describe mastery of a specific practice. Shu: follow one rule, one technique, exactly as taught, from one teacher — no deviation yet. Ha: break from the rule once it's understood, start comparing it against other techniques, begin adapting. Ri: transcend the rule entirely — the practitioner embodies the underlying principle and no longer needs the letter of the technique to apply it well.

Dreyfus model — describes skill acquisition in five stages: Novice (needs explicit, step-by-step rules; no situational judgment yet), Advanced Beginner (starts recognizing recurring patterns but is still rule-bound), Competent (can plan ahead and troubleshoot using real experience), Proficient (sees the whole situation at once and self-corrects), Expert (works intuitively and rarely needs to consciously apply rules at all). Coaches use it to calibrate how much structure versus autonomy to give a specific person learning a specific agile practice.

Study focus: a mature, self-organizing team that resolves its own conflicts and holds itself accountable — even one that's only been together a matter of months — has reached Tuckman's Performing stage and calls for Delegating, regardless of how long ago it was formed.