The UCL League and Europa League next season will indeed be very interesting, especially with the new format, of course this will be a burden for all teams because the schedule is too busy so that it requires smart coaches to rotate players. With the new format like now, it is the same as torture for players because they have to play in the domestic league, plus the Champions League or Europe with a domestic league model without a group phase, if the coach is not smart in rotating players, then the team players will experience a storm of injuries.
I think all coaches will find a way to create a new strategy in dealing with the new format next season so that their players do not get tired easily and are not easily injured due to the density of matches in a fairly close time. And yes, any coach must be smart enough in managing and rotating each of their players so that the team remains in better condition with mainstay players who do not easily lose their stamina due to this. But I also think that in implementing the new format, of course, it will not be easy for anyone because everyone is still not used to it.
The European League will carry a new format with many changes that will occur later, the most prominent thing is the increase in the number of clubs that will participate next season and this will automatically mean that the number of matches for each club will increase compared from European League last season, currently the only way for teams who are playing in the European league next season to be able to keep up and also remain able to compete with other clubs is to improve the depth of the squad they currently have to make it easier for them to can rotate players, adding new players will be alternative for the team to be able to perform consistently well in the league domestic and European league next season, so far many clubs can not been able to maintain their performance when facing a busy schedule none other than because the depth of the squad they have is not adequate, so forces coaches to continue playing their main players in every match so far without having replacement players which worthy.