Companies undertaking a rebrand generally hope to change how they are perceived. The identity changes on schedule and the perception frequently does not, because the two are formed by different things.
Beliefs are built from experience, not design
What a customer thinks about a company comes from what happened when they used it, what they were charged and how a problem was handled.
A new name, colour scheme or typeface does not alter any of those, so the beliefs survive the redesign intact.
Where the experience was poor, the rebrand is read as an attempt to distance the company from its record, which can strengthen the original impression rather than replace it.
Recognition is discarded along with the old identity
An existing identity carries accumulated familiarity, and customers use it to locate the company quickly in a crowded environment.
Replacing it discards that familiarity and requires a period of reinvestment before the new version is recognised as reliably as the old one.
The cost is real and rarely counted, because it shows up as slightly slower recognition across every channel rather than as a line in the project budget.
Internal problems drive many rebrands
Identity work is frequently commissioned when a company wants to signal a change of direction to its own staff and investors as much as to customers.
That is a legitimate purpose, and it is a different objective from changing customer perception, with different measures of success.
Confusing the two produces a project judged against an outcome it was never structured to deliver.
Some rebrands are structural rather than cosmetic
A merger, a change of ownership or an expansion beyond what the original name described can make the existing identity inaccurate rather than merely dated.
These changes have a clear rationale that can be explained, and customers accept explained changes far more readily than unexplained ones.
Rebrands presented without a reason invite the audience to supply one, and the reason they supply is usually less favourable than the truth.
Perception follows changes in what the company does
Where a company genuinely improves what customers experience, perception shifts slowly and then durably, with or without new visual work.
An identity change made at the same time can help by marking the difference, giving customers a reason to re-examine an assumption they had settled.
Used that way the design supports a substantive change, and used alone it is an announcement with nothing behind it.