Kanban: Making Bottlenecks Impossible to Ignore

Visibility is the cure for bottlenecks

Kanban was invented at Toyota in the 1940s as a visual signal system for manufacturing. The core insight: when work is visible, problems are obvious. You can't ignore a pile of unfinished cars on the factory floor. The same principle applies to software development, marketing campaigns, client onboarding, and any other work that moves through defined stages.

A Kanban board makes invisible work visible — and visible problems get fixed.

Reading the Proactiq Kanban board

Open any project and click Board view. Tasks are cards, arranged in columns by status:

• Backlog — Queued but not yet started. Prioritise this list weekly — move the most important items to Todo.
• Todo — Ready to be worked on. Should represent the next 48–72 hours of work for the team.
• In Progress — Currently being worked on. If someone has more than 3 cards here, they're context-switching — or the tasks aren't small enough.
• In Review — Done by the assignee, waiting for someone else to verify or approve.
• Done — Completed and accepted. Cards move here only after quality has been confirmed.

The WIP limit — the most counterintuitive principle in project management

WIP stands for Work In Progress. Limiting the number of tasks in the "In Progress" column to 2–3 per person seems like it would slow work down. The research shows the opposite: teams that limit WIP finish more work, with higher quality, and in less total time.

The reason: context-switching between 5 tasks costs an average of 40 minutes per switch in cognitive setup time (research from the University of California, Irvine). Finishing one task completely and starting the next is always faster than running 5 tasks at 20% capacity.

The daily standup format

Use the Kanban board as your standup visual. Each team member answers three questions — total meeting time: 15 minutes maximum:

1. What did I complete yesterday? (Move cards to Done)
2. What am I working on today? (Move cards to In Progress)
3. What is blocking me? (Flag the card with a comment)

The board shows the full team's status at a glance. No status report, no slide deck, no 45-minute meeting.