In theory, there will be no problem to defeat FCK in the final DFB Pokal. Although sometimes there will be a surprise but it is unlikely to see a surprise in the final Leverkusen vs FCK. The level of these teams is too different, Leverkusen even can't be defeated in the main domestic competition in German. How can a team in the lower competition in German to challenge Leverkusen? It simply has no chance for FCK to win against Leverkusen.
Exactly, FCK should not be a big problem for Leverkusen. Leverkusen is far above the FCK level, so, Xabi should be able to bring the DFB Pokal victory very well. There is no doubt about that. That will be in May, so Leverkusen will have more time to focus there too. Currently, Leverkusen's focus is on the UEFA Europe League, this is an important match. Moreover, the opponent this time is quite tough, AS Roma from Serie A, which also often provides surprises. If Xabi can bring another victory from Roma, then the chances of winning the UEFA Europe League will be even greater.
I know that his achievement this season is really catchy and enough reason for all these teams to want to go after him especially in the fact that he's been a very good coach and he's just young and achieving this much in his first trial as a coach could mean that he could possibly get to do much better if he's in a bigger league and handling a bigger team and thats why bigger teams with big offers would want to come after him.
Of course there will be many clubs who want him to be their club coach. But, so far, Xabi has shown no signs of willing to leave Leverkusen next season. because his contract at Leverkusen also lasts until 2026. Moreover, if Xabi leaves Leverkusen, honestly, it will definitely be difficult to find a coach like Xabi again for Leverkusen, it might even be like Napoli. Because of this, Xabi has not considered leaving Leverkusen. At least, we also want to see how Xabi brings Leverkusen in the UCL next season, right?