Bringing on a new Head of Marketing can shift the entire team's dynamics, often leading to overwhelming demands on their time. To ensure they make an immediate impact, the article emphasizes the importance of setting clear priorities and reducing distractions. Start by aligning with the CEO on key outcomes for the first 90 days and encouraging the new leader to connect with heads of sales, product, and customer success to understand existing challenges and opportunities. Using data to identify what's working helps establish focused KPIs that everyone agrees on at the outset. Balancing learning and doing is crucial in the early weeks. The article suggests creating an onboarding plan that includes both learning objectives and actionable deliverables, shared transparently across the organization to manage expectations. Regular check-ins with leadership can help maintain momentum. For AI adoption, conducting an audit of current initiatives and piloting new use cases can demonstrate quick wins. Examples include building a prompt library and holding hackathons to engage the team. The new marketing leader should focus on 2-3 top priorities, such as optimizing existing pipeline sources, addressing funnel issues, and identifying strategic initiatives that require momentum. As they work toward early wins, specific actions like refreshing sales content, creating customer references, and optimizing landing pages can build trust among the team. Weekly updates to the leadership team about progress and outcomes foster accountability and transparency. By the end of the first month, the Head of Marketing should begin outlining long-term strategies, even if those plans aren't fully formed. It's essential for them to present ideas for sustainable growth and scaling the team to meet company goals. Establishing credibility early on sets the stage for future resource requests and strategic shifts.