Xabi Alonso transformed a struggling team into a force. Now it's more than poking Bayern Munich. This team is a Bundesliga contender and will cause issues in the Champions League. They'll keep improving if Alonso stays, as he appears to.
Not simply results. Alonso altered their game. He upended Bayern's longstanding practices and created a new benchmark. No one can sleep on Leverkusen anymore. Next season? Their matchup will be everyone's nightmare. With Alonso, their consistency will improve, and soon everyone will know them.
The increasing strength of Leverkusen under the control of Xabi Alonso is very good for the Bundesliga, so far only Dortmund has always been Bayern Munich's competitor, but competition from Dortmund has not been able to prevent Bayern Munich from emerging as champions. Leverkusen has provided a surprise this season by winning the Bundesliga trophy while ending Bayern Munich dominance.
Xabi has become the most influential figure in improving Leverkusen quality from previously having difficulty appearing in the Champions League to becoming a team that will be taken into account in the Champions League next season. The presence of Leverkusen in competition in the Bundesliga will make Bayern Munich more careful next season and improve the quality of the Bundesliga to become a more competitive league.