NEW YORK (AP) — The reason Christina Aguilera takes time away from “The Voice” is because she knows she can’t juggle two teams at once. The current season shows the coaches building their teams and getting ready to work with them, but the blind auditions for the spring season are already under way. Aguilera says it’s easier for Blake Shelton and Adam Levine to run two teams at the same time for a simple reason: they aren’t parents. Aguilera says she’s a better coach and a better mom if she does only one season of “The Voice” per year. She has also been working on a new record that she hopes to put out next year.