Leverkusen couldn't believe what they saw,they actually thought Atalanta was a team they could override,but the opposite happened to them,ending their unbeaten record in Europe and Europa league's competition.It was a big dissappointment to them,but they have to accept it the way they saw it,think of next season, recruit more players so the team can have squad depth because they are entering into a very tough competition,which is the Champions league,and I think in my opinion,that if they can keep all their players intact,they will do well.
But it might be very difficult for Leverkusen to keep every player they currently have. Because several clubs are even eyeing several Leverkusen players at the moment. and it is true that Xabi Alonso and Leverkusen thought they might not have any trouble in Atalanta's last final. They even used a slightly unusual formation. And this made Leverkusen finally have to accept defeat. But their current focus will be on preparing for the UCL which will definitely challenge them more next season. And Leverkusen will also definitely fight to remain at the top level in the Bundesliga. And maybe they really have to recruit more talented players in the next transfer market.
Roma next season will probably still be in the European League. And maybe there will no longer be a strong obstacle for Roma in the European League next season.