Diagnose where the problem is
Two different cases: the business logic is unchanged but the expression is dated, stores look old and materials are inconsistent — that is an expression upgrade; or the customers, product mix or profit model have changed — that is a positioning rebuild. Much of the waste we see is treating an expression problem as a strategy problem, starting over and discovering the assets that still worked were thrown away.
Keep the assets that still work
Check three lines: do customers still recognise the name and symbol, do stores still have consistent recognition, can the team still say clearly what it sells. If two of the three hold, keep and repair rather than replace. Brand assets are built by accumulation; replacement is easy but rebuilding takes longer and may not return to the same position. Repair is not conservatism — it spends the budget where the work is not done yet.
When rebuilding is justified
Rebuild when the old positioning limits growth: customers and product no longer match, the price band has no margin, or regional perception blocks expansion. Rebuilding is not a new slogan; it re-answers who you sell to, why you are chosen and how you make money, and products, stores and communications follow. Decide slowly, then move fast; the biggest risk is starting over repeatedly.
Upgrade in phases
Even a rebuild need not change everything at once. A common approach: change materials and new stores the head office controls first, renovate old stores in batches, switch packaging as old stock runs out. The market sees change without regulars suddenly failing to recognise you. Rhythm is part of the upgrade: decide what changes where and when in advance.

