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To be honest, I see that the change in the current UEL format is more inclined provide more competitive competition and we as spectators actually see it as a positive thing even though it has become a nightmare for big teams

, with the change in the format of the competition, each team is required to have a good squad depth, because with the increase in the number of clubs and also matches, Of course, it will require extraordinary performance and consistency to their remain balanced both in the domestic league and the UEL this season, in addition from the tight schedule which may be owned by big teams, precisely has opened up opportunities for underdog teams to be able to compete today as title contenders and that we did not find in the old format of the UEL previously.
I think the vulnerability to player injuries is a downside here, although in many respects, the change in match format is seen as having more positive aspects. Big teams can actually easily overcome any challenge if they are in their best condition, because they have quality rotation options to get around the tight schedule. Teams coming from less competitive Leagues will still struggle to compete in the Europa League, there is not much they can gain from the change in format if they do not have sufficient squad depth.
The League phase is the most crucial stage of the new Europa League format, entering the round of 16 and beyond, everything will seem normal as in previous seasons. So the elite teams with experience will be favored by many parties again, all of which will be proven as the Europa League progresses. However, the new format seems to have succeeded in attracting more fans.
like as I said above, the change in the UEL format has allowed every team to be a title contender whether it is an underdog or a favorite team as long as they have a better squad depth, because with a tight schedule in the UEL and domestic leagues demanding every coach to be able to rotate players well, we can take an example in this season UCL where a big team like Madrid, Milan and also Manchester City are having a hard, because many of their players are injured and I think that also applies to every team that is in the UEL.
In the league phase their challenge is tougher at the moment to qualify for the knockout phase, so I agree with what you said, if the knockout phase will be easier for every team, especially the team that has had better experience so far in European competitions.