A plan that lives in a document dies in a drawer. The Mission Canvas becomes real only when it turns into a board the team works from every day. The Mission Board is where the quarter becomes visible work, and where the conditions the canvas named are kept alive while delivery moves.
From plan to visible work
The board translates the canvas into the concrete work that changes the constraint and holds each condition. It is not a task tracker bolted onto the plan; it is the plan, made operational. Every item on the board should trace back to a condition on the canvas. Work that cannot be traced to a condition is a candidate for the not-this-quarter list, not the board.
The board tracks conditions, not just tasks
Ordinary boards track whether tasks are moving. The Mission Board also tracks whether the conditions are holding. A task can be on schedule while the condition it depends on quietly erodes, and that erosion is exactly what planning was meant to prevent. Making conditions visible on the board is what lets a team catch a problem while it is still cheap to fix.
Who can decide, at the board
Authority is the condition most often lost between planning and execution. The board is where you make it explicit: for each lane of work, who can decide and act without escalating. When the person closest to the work can move without waiting four levels up, the board flows. When they cannot, the board becomes a queue of things waiting for permission, and the constraint you mapped simply reappears as delay.
With the board designed, the final lesson runs the whole quarterly session end to end: Executive Mission Planning.
How this fits the system
The canvas becomes the Mission Board here, the surface that keeps the conditions visible while delivery moves.