Most people recognize the importance of interpersonal skills in the workplace, but it’s often hard to measure. The recent “Managerial Success Study” by our team scientifically reaffirmed what we have learned through half a century of experience: our team Versatility measure is a powerful indicator of workplace effectiveness. The study shows that interpersonal skills are an important element of overall success comparable to intelligence, previous work experience and personality. Statistical analysis identified a strong correlation between high Versatility and effectiveness in 47 elements of job performance such as “ability to effectively manage conflict,” “ability to influence,” “initiative” and “effective team leadership.”