Bayer Leverkusen coach Xabi Alonso said that rotation in the team will be key this season in view of their busy schedule. Leverkusen start their German Cup title defence Wednesday against Carl Zeiss Jena, while during the year they will also compete in the Champions League and aim for a second consecutive Bundesliga title. “We have a big squad with lots of options. Rotation in the team will be important again this season as it was in the last. I have confidence in every individual player,” Alonso said in a news conference on Tuesday. Leverkusen, as well as VfB Stuttgart, had their Cup first ro…