The manager told Sky Sports News: "Next season will be better than this season, that's our objective, the objective of everybody. Our young players will be better, hopefully we will have a couple of players to improve our team and we will try to do better next season.
"I can't be critical of a group of players who are trying everything. We have problems with injuries, suspensions and players who can't play in the Champions League."
The final takes place in Portugal next month.