An analogy I use with my teams in trying to draw out the best in each other:
People generally have lots of smarts and abilities, or roughly the same number of ‘apples’ to play with. But there are simply way too many important abilities, skills or talents for any person to have a lot of ‘apples’ in all of the possible ‘baskets’. Rather, people have to spread their apples. Some have a few apples in many baskets and are generalists. Others have many in only a few baskets, and are very, very skilled in those specific areas.
The goal is always to understand where people have their apples, and then build teams that stack the collective baskets as full as possible.