A 2014 strategic framework Stewart Butterfield set for Slack — four boxes: product people love, network effects (later Slack Connect), platform, and AI — that stayed fixed as the company's long-range master plan for years, even as yearly priorities and the specific initiatives inside each box changed repeatedly.
The pattern illustrates a distinction between a durable strategic skeleton (the boxes, rarely revised) and the tactical roadmap inside it (revised yearly): the master plan gives teams a stable frame to place shifting bets against, functioning like the fixed pillars in Good Strategy's Three Components: Pillars, Non-Focus, and Why while the roadmap underneath behaves like a Four-Quarter Rolling Roadmap. Contrast with Strategy 'Keeps Changing' as a Clarification-and-Buy-In Failure, where a change in stated strategy without clear communication reads as instability — Slack's four boxes avoided that because the skeleton itself never moved.
Reported by Tamar Yehoshua (Glean), who worked under Butterfield as CPO at Slack.
Butterfield sketched this master plan in 2014 as four fixed long-term destinations: (1) a product people love, (2) network effects / Slack Connect (inter-company connection), (3) platform (third-party extensibility), (4) AI. The plan stayed constant for years even as year-to-year execution priorities shifted — the four boxes were the destinations, and each year's roadmap was just which box got the most attention that year.