Sometimes, a PMM can not just help market your products but can also productize your marketing.
Productized, repeatable, and scalable marketing is the key to exponential growth. It starts slow and then compounds over time.
If you're finding yourself doing too many ad-hoc marketing activities that feel disposable, ephemeral, and hard to optimize, measure, and maintain - consider how you can add more productization.
Maybe a great PMM can help.