The new team chose two of the six premieres City Ballet will present in the 2018-19 season, reaching beyond the traditional ballet world to commission works by Kyle Abraham and Emma Portner. They learned the puzzle-like intricacy of planning a year’s worth of ballets, which must be chosen so subscribers won’t see too many repeats and scheduled so the whole company — dancers, orchestra, costume shop and more — can handle the workload. And they learned to use analytic tools — think Moneyball, but for ballet — which forecast how well each dance will sell.