What an agency is actually for
Buyers appoint agencies for capability they cannot justify hiring, capacity they cannot flex internally, or an outside creative standard the in-house team cannot reach alone. All three are legitimate, and each points to a different agency type and contract shape. Trouble starts when the brief blurs them: an agency retained for strategic capability and then judged on production volume will disappoint on both counts, and the relationship will spend its energy renegotiating what was never defined.