The direct answer
Generic AI output is a context problem. Give the system a client's voice, audience, and history, and the drafts come back in that voice. Skip it, and everything flattens into the same tone. Agencies get accused of making clients sound alike because most of them are feeding AI the same thin brief.
The fact: 84% of business buyers say most sales reps don't take the time to understand them. Audiences read the content the same way. Understanding is the deliverable.
SOURCE: Salesforce, State of the Connected Customer (6th edition) — Read the report
The fact: Research on brand consistency found consistent presentation can increase revenue by up to 33%, while 81% of companies still publish off-brand content.
SOURCE: Lucidpress, State of Brand Consistency (2019) — Read the study
The Play
Build one Foundation per client. Voice, audience, offers, the words they use, the ones they never would. Then every play, on every asset, reads from that Foundation first. The drafts come back sounding like the client because they start from the client.
The agency opportunity
This is also how an agency scales without hiring. The team that used to write everything from scratch now reviews drafts and makes calls. Output goes up. Voice stays intact. The client notices the consistency before they notice the speed.
Where to start
Pick your most demanding client. Build their Foundation. Run one asset through it and put the draft in front of them. Score the reaction honestly.