Content departments don't create five times; they create once and adapt five times. One solid piece — a post, a talk, a case study — becomes a thread, a newsletter section, a LinkedIn post, a short script and an FAQ answer. AI makes the adaptation nearly free; your job is supplying the one good source.
The mechanic matters: give the model the source verbatim plus a format spec per output ('newsletter: 80 words, one link tease, warm sign-off'). Never say 'make social posts from this' — that's how you get five flavors of the same mush.
The seed is a repurposing brief with two target formats. Run it and check whether each output actually respects its format spec, or whether the model just re-summarized twice.