Authority is vertical. Influence is horizontal. For strategic marketing leaders, most of your work happens horizontally across teams, functions, and priorities that don't naturally align. You need product to adjust the roadmap, sales to adopt new messaging, and finance to approve budget shifts. None of those conversations comes with formal power. In this episode of This Is Strategic Marketing, I break down how to lead cross-functionally when you don't have authority. Leading horizontally requires building influence through credibility, not authority. Strategic leaders don't wait for a bigger title to lead cross-functionally. They build influence first, and influence gives them the ability to drive outcomes even when they're not in charge.