Brand drift is the gradual, undetected degradation of brand standards across touchpoints. It does not announce itself. It happens one exception at a time, one vendor shortcut at a time, one "just this once" at a time. Each deviation is small; together, they are devastating.
The early signs: decks that do not look like they come from the same company, social posts with inconsistent tone, a website that says one thing while the sales team says another, partners who "get the gist" but cannot execute on-spec. By the time leadership notices, the cost of remediation is five times what prevention would have been.
Brand drift is TISSA's declared enemy. It is what happens when organizations have pretty artifacts but no rules, no approvals, and no accountability. The Brand Master Book prevents drift by design. The Owner's Rep prevents it by practice.