In the aspect of Manchester City and Liverpool, City has been doing more better than Liverpool, especially these past two seasons where Liverpool has failed to be consistent notably last season where they're like the best team to win the EPL and possibly get the Europa league also but shockingly fell off in both, I don't know what this season in the Champions league holds for them, they make it to the quarter or semi finals, depending how consistent they are and how severe the injury crisis they may suffer this season.
Yes, that is something that has been happening to them from time to time, many of the friends that we play soccer with sometimes think that they have bad luck, they reduce all that to that conclusion, and if we look at it, well, it has its quick and easy logic, it may be that they have bad luck, but on the technical aspect I think that the players are affected by the pressure and the tiredness , many players have to make great efforts to perform in the games and the training sessions are not easy at all , that is something that they have to see and that I think is one of the reasons why they can have that performance, it is difficult to maintain the level as they advance more.
Though of a truth, being lucky is one vital component in football that is very much needed to advance even when it's not your best day, but in my own perspective, in the case of Liverpool and Manchester city, to me anything that has happened in the past few seasons is not just about luck, Manchester city has been a shoulder above them for sometime now and it's no coincidence that they have been this dominant in the English premier league, they are actually good.
Even in the uefa champions league, if you pay close attention to both of these teams, you will definitely know that they are not on the same level in the past three to two seasons their about, so in as much as luck is very much important to strive successful in what ever you do in this life, talent and the ability to know how is way more important than anything else, because am quite sure that even if you aren't lucky, though you might not win it due to being unlucky, but you will definitely be among the top challengers year in year out because you are actually good.