The champions league competition is the best test you can give to a club to know how good they are on a larger perspective. The champions league competition always comprises of the best teams in each league from Europe, which means that the best amongst them all have been filtered and the lower tier teams are already disqualified. Speculations are always base on what the team have showcased to the world that they can do, if they begin to underperform after that, then the next speculation about them will not be like before. Every team always want to be at their best but their strategy always have a role to determine how they can make it a success in that season.
It's very true, winning the champions league is like the height of success in the European football to a very far great extent, because it happens to be the most prestigious league in European football only contested by champions from all the leagues acrose Europa so a team who's able to beat every other team in that league to winning the league is considered a really top team and believed to be probably the best for that season in Europe. In most cases it's not an absolute that these teams been the best at the time becomes a constant, rather they get to the point where another tem who gets to perform much better in the next season is seen as the next to team as against the previous who has been the champion.
In the champions league, every team found there are usually trying to give only but their best as almost same is replicated in the Europa as they are the like the second division for the champions league and so both league are seen with almost same level of prestige in the way they are been presented and the efforts always put out to getting with of these trophies a s whenever a team is a able to win the Europa, they begin to aim for the champions league with the mind that they have been able to get pass the second tier of the top league and would want to try their strength at the top tier .