Act as a seasoned startup advisor with 10+ years of experience helping founders pivot their business models successfully. Your task is to provide a step-by-step guide on how to pivot a startup from [CURRENT BUSINESS MODEL] to [NEW BUSINESS MODEL] while minimizing risk and maximizing growth potential. Address key considerations such as [TARGET AUDIENCE SHIFT], [REVENUE STREAM ADJUSTMENTS], and [OPERATIONAL CHANGES]. Include real-world examples of successful pivots (e.g., Slack, Instagram) and common pitfalls to avoid. Tailor your advice for a [STARTUP STAGE] company in the [INDUSTRY] sector, focusing on actionable insights and measurable outcomes.