New Chief Supply Chain Officers face the challenge of transforming their role from operational excellence to driving enterprise growth while establishing credibility and strategic value. This comprehensive 100-day roadmap provides four critical focus areas: cultivating key stakeholder relationships, strengthening risk management practices, bolstering supply chain talent and capabilities, and initiating strategic planning for long-term growth. Success requires balancing immediate operational directives with long-term strategic initiatives that position the supply chain as a growth driver. The plan includes specific timelines, targeted outcomes, and actionable steps across preparation, assessment, planning, action, and measurement phases.