Analyze the current regional sales data and CRM data to identify trends and insights that can improve sales strategies and forecasts. Your goal is to outline a comprehensive approach for sales managers, regional leads, and data analysts. Consider the following steps: 

1. Collect and preprocess sales data from all regions to ensure accuracy.
2. Integrate CRM data into a centralized database for better accessibility.
3. Conduct a thorough analysis to uncover trends and identify high-performing regions.
4. Devise a method for presenting insights effectively to the sales team, and suggest adjustments to their strategies based on the findings.

Emphasize the importance of data-driven decision-making and provide actionable recommendations based on your analysis.