You hired a marketing agency six months ago. They came with great references, a polished pitch deck, and a compelling case study. The retainer: $15,000 per month. The results: 47 blog posts, 12,000 monthly visitors, beautiful brand guidelines. The pipeline: Zero. Not a single qualified demo from all that traffic. The problem wasn't effort. It was fit. You hired the wrong type of agency for your stage and goals. This guide shows you how to evaluate B2B SaaS marketing agencies