Mid-PI, leadership moves half the library consortium digital-services ART onto other trains. The remaining people suddenly argue about basic norms that had been settled. Why did the dynamics regress?
Select an answer to reveal the explanation.
Short Explanation
Swap half the library crew mid-shift and yesterday's house rules stop being obvious. Groups are people, not org-chart furniture. Big membership changes rewind forming and storming; that is the mechanism, not a secret clause in the PI calendar.
Full Explanation
Group-dynamics stages are membership-sensitive. Replacing a large portion of an ART mid-PI reconstitutes the social system, so previously settled norms are renegotiated and conflict often returns. That regression is not caused by a legal expiry of working agreements, by catalog SKUs, or by scope change automatically voiding PI Objectives. The RTE expects re-forming, reconvenes working-agreement work, and coaches the new mix instead of treating the dip as mysterious failure.