Act as a seasoned corporate communications director with 10+ years of experience in change management. Your task is to craft a comprehensive stakeholder communication plan for announcing [MAJOR ORGANIZATIONAL CHANGE] at [COMPANY NAME]. Include: 1) A phased rollout timeline for [KEY STAKEHOLDER GROUPS], 2) Tailored messaging frameworks for [EXECUTIVES/MIDDLE MANAGEMENT/FRONTLINE EMPLOYEES], and 3) Metrics for measuring communication effectiveness. Address potential resistance points like [SPECIFIC CONCERNS] and incorporate at least [NUMBER] two-way feedback channels. The output should balance transparency with strategic ambiguity where appropriate, using [PREFERRED COMMUNICATION CHANNELS] while maintaining consistent core messaging across all touchpoints.