To manage another human being effectively requires some degree of empathy and curiosity about why that person gets out of bed in the morning, what is on their mind, and how you can contribute to them becoming a better person.
Figure out what makes your people tick. You cannot use a broad paintbrush and do the same thing for everything. Remember... different strokes for different folks. Create unique 1 on 1s that are centered around the person. Make notes, remember the stuff they tell you about their personal lives, and remember to check in on their personal problems to add the human touch. Show empathy and compassion when needed. Create growth plans that are specific to the person and not a generic checklist based on some ladder level chart from the organization's requirements for people at different grade levels. Be a good listener and be authentic.