bolligerallstar

It all depends on what you mean by the "investment line"

If you mean research/portfolio management, that will be a tough move because being in sales/marketing you just have never performed that type of job function.

If you want to get more into a technical investment facing role, but don't necessarily have your heart set on being a portfolio manager, something like Relationship Management/Product Management might be able to leverage your skills from your experience while also giving you more experience working directly with investment concepts. While this also might not be an easy path, probably more likely than going the portfolio management route.