Commission a rebuild
When there is nothing usable underneath.
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There is no site, or nothing worth keeping
No site at all, and every enquiry living in a WhatsApp thread you cannot search.
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Nobody can edit it
The person who built it has gone, and the site went with them.
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The structure follows your org chart
It organises everything the way your business is organised internally rather than the way a customer looks for things. Structure is the one thing tuning cannot fix. If it is wrong, it gets rebuilt.