There are "four keys" to becoming an excellent manager: finding the right fit for employees, focusing on strengths of employees, defining the right results, and hiring for talent - not just knowledge and skills.
Marcus BuckinghamStrengths are not activities you're good at, they're activities that strengthen you. A strength is an activity that before you're doing it you look forward to doing it; while you're doing it, time goes by quickly and you can concentrate; after you've done it, it seems to fulfill a need of yours.
Marcus Buckingham