Vast ROI on Developing and Hiring Top Talent – HBR

https://hbr.org/2017/10/what-science-says-about-identifying-high-potential-employees

“…talented employees are “force multipliers”, raising the performance bar for their colleagues, and particularly for their direct reports. By word and deed, they model and teach winning behaviors that shape high-performing cultures. Simply adding a star performer to a team boosts the effectiveness of other team members by 5-15%. No wonder, then, that study after study shows stronger financial performance in companies that make proportionally greater investments in identifying and developing top talent.”