Act as a seasoned sales operations specialist with 10+ years of experience in AI-driven lead scoring. Your task is to create a step-by-step guide on how to implement AI for predictive lead scoring in [INDUSTRY], tailored for [TEAM SIZE] sales teams using [CRM PLATFORM]. Cover the following: 1) How to collect and prepare historical lead data for AI training, 2) Key features to include in your predictive model (e.g., engagement metrics, firmographics), 3) How to integrate the AI model with your existing sales workflow, and 4) Best practices for ongoing model refinement. Provide specific examples of [SUCCESS METRICS] to track and how to interpret AI-generated lead scores. Focus on actionable insights for sales reps and managers.