After success with Xabi Alonso, Bayer Leverkusen lost him to Real Madrid but not only this, they sold many star players to other clubs which are good for their club financial balance sheet in this summer. In long term Bayer Leverkusen will have to rebuild their squad with many new players with no guarantee of success and how they fell into crisis before Xabi Alonso appearance in their club is a warning for them.
this has always been the biggest challenge for clubs that lack adequate financial strength because they always end up compromising in terms of selling off their best talents all in a bid to Ballance the books and ensure that they do not have issue when trying to participate in transfer market, have seen this happened a lot of times to many teams but at the end it usually becomes a disaster for the teams because they would need to start rebuilding the team which is quite dangerous especially in a competitive league.