Next season will be a real challenge for Leverkusen. They will play in the Champions League and that is a high level competition. Xabi must be able to rotate players and add variations to match tactics. I think club management will give Xabi a budget to find the players he wants. And for tactics I think if you play at a level like the Champions League you really need a variety of tactics because strong teams from other leagues will look for your weaknesses. And if they find your weaknesses then the teams in the domestic league will also find out your tactical weaknesses if you lack tactics.
Alonso stay in Leverkusen at this time certainly delights the fans and also the management, especially they have high hopes for Alonso to be able to continue to provide achievements for extraordinary achievements in the Leverkusen squad next season, I think Leverkusen' qualification to the Champions League will certainly make next season's Champions League full of surprise teams that are able to make history in the league this season, I think if Alonso can continue to maintain their squad this season, of course it is not impossible that they can compete in the Champions League next season.
The champions League has always presented fierce competition and even not infrequently the seeded team must fall faster than the team that Is able to maintain the consistency of their game, and that is why alonso will get a challenge and also a strong pressure in the Champions League later for him to continue maintain the consistency of the game from the Leverkusen squad, besides that the Champions League will be his first test as a coach and of course he must be able to give all His ability to take Leverkusen far in the Champions League next season.