That sort of thinking can breed siege mentality for a short period of time. That is what Mourinho is good at. However, after a season or two players just start believing all that non-sense and start feeling sorry for themselves. Why actually try till the last whistle when the game is rigged against you? That is why almost always Mourinho's teams crumble after a few seasons.
I felt that as soon as Pep and their players started spouting all this conspiracy stuff last season, that their time at the top was not gonna last. This season too you can see that when they are on top they are really good. But when there is any adversity, they cry and moan and end up losing. The league game at Anfield was a perfect example. After going down, Sterling spent all that time throwing tantrums rather than trying to lead the team with his performance, then he attacks Gomez during national duty. This is how angry and obsessed Pep has made them.
Us and them are two teams built in their manager's image. We lost the EL final didn't sulk and just made it to the CL Final the next year. We lost that and won the CL the next season while narrowly missing the league. The players didn't sulk and are just having the greatest league season any team ever has had. Totally different to their trajectory.
Siege mentality has been used by various managers over the years. Ferguson was the main one. Jose, Pep, even Moyes have made use of it as a bonding element in focusing team effort.
I have always thought it counter productive. It ends up with players psychologically drained because it is so negative.
When we were winning things in my youth, it was fun. We the fans, and the players together seemed to just enjoy being so bloody good. It was a bloody party. Yes, we poked fun at the mancs, but also Chelsea, Ipswich, Spurs or whoever we played that week. The city was under seige politically and socially, so footy was the outlet for our worries. Shanks loved football, the eternal optimism and sheer enthusiasm for the game was our yardstick. Bob was less outgoing but his knowledge and love for he game was awesome. Joe and Kenny were similar in that they expected perfection, but all of us of a certain age will chuckle when we recall how the media had Kenny described as a dour Scot, because we regularly saw his smiling face, arms aloft. Sheer bloody joy from football. Ged was another who enthusiastically talked about his love of football. Rafa was another, a manwho loved our game deeply, and it endeared him to us.
We now have this guy Klopp, another lover of the game. His enthusiasm is infectious, his knowledge respected, and the fact that like our greats, he knows he has much in common.
Pep isn’t an enthusiast, he is a student of the game admittedly but he doesn’t make you happy. Jose is another one, their intensity sucks the energy out you and leaves you unable to enjoy winning.
I refer you to their “celebrations” singing a shit version of Allez. They don’t do “dreams and songs to sing”, no more than Chelsea did under Jose or indeed the Red Mancs under Ferguson. Their yardstick was/is to climb on our perch. It only gets you so far.