Many people, not only you, doubt whether Xabi Alonso can develop even more crazy after they last season had a pantastis match with victory and unbeaten performance, this triggered the negative possibility of some people thinking about Bayer Leverkusen.
But if indeed Xabi Alonso can develop much crazier and better than before this will be something very great in the future because indeed Bayer Leverkusen in the hands of xabi Alonso get a development that has never been recorded before, will be the best coach ever found if the development continues, but I think it is also a little unlikely because Xabi Alonso also does not have many good players at Bayer Leverkusen, he is only good at maximizing the abilities that are there and succeeding, we do not know what the future steps will be.
Yes you are right many people wonder if Xabi Alonso can do even better than last season amazing success at Bayer Leverkusen. Some people doubt Leverkusen chances with Alonso as coach but I think he is great coach who can bring out best in his players. If he keeps doing well he might become best coach Leverkusen has ever had. However Alonso success depends on how well he can work with players he has since he does not have team full of superstars. Future is uncertain but one thing is clear Xabi Alonso has already made a big impact as a coach and it will be exciting to see what he can achieve with Leverkusen.