Using accurate behavioral suitability data that lays out one's motivations, tendencies, attitudes and behavioral competencies greatly increases management effectiveness when used properly. Unfortunately, when we discuss this with many, they think about their efforts to use personality typing data, trying to find value in D or I or E or N "types". In fact, using "types" can often make the understanding of the person even murkier for a variety of reasons, but focusing on actual traits where the trait's intensity is accurate and where negative traits are also measured, provides a much more powerful method for improving management interactions. In this 2 part series, our aim is to give you some perspective for how a manager can use this to improve their leadership and additionally to provide an overview of the data that is used. This is part 1 of 2.