Juventus are always ambitious to win UCL every year even though they always fail, with the arrival of Ronaldo alone is not enough I think strategy is an important point in winning UCL.
Champion's League is hard to win, you need a combination of luck and skill to win it.
For example on final this year we got Liverpool and Spurs but they pass the group stage for incredible luck both.
Also for example, in this case, we talk about Juve, if the shot of Douglas Costa vs ajax instead of taking the pole and going outside he took the pole and score, we probably now talking about a different story.
You need l think 70% skill and 30% luck to win the cup.
5 minutes at the end and just needed only 5 centimeters more on left to change the history, a bit of luck.
https://www.youtube.com/watch?v=ivFyZ3SoIfQ