What are the key statistics from Janice Gordon's research on sales training ROI?

Based on the available content, here are some key statistics from my discussions and research on sales training and ROI:

• According to OMG, sales teams that use data-driven hiring and training assessments are 75% more productive.
• Research by Salesforce highlights that 57% of sales leaders using AI see improved sales productivity.
• Mackenzie's research shows that data-informed companies outperform others in customer acquisition by 23%.
• Mackenzie also found that companies with diverse executive teams are 25% more likely to achieve above-average profitability.
• Forbes noted that improving retention by 5% can increase profits by 95%.

These statistics emphasize the importance of data-driven decision-making, diverse leadership, and customer retention in enhancing sales productivity and profitability. Would you like more information on a specific aspect of this topic?