There’s no proof of that
The issue for me, and it’s the same for all the clubs playing in Europe, is the time the coach has on the training pitch with his players Playing twice a week, more in this month, allows no time to spend on tactics, we know that Pep’s system takes a lot of leaning so it’s compounded. He’s also had to bed new players and cope with the loss of David Silva and the ageing Kun and Ferdy
There really is a bigger picture here that many just don't look at, and it really Is affecting all teams and leagues, and seems to in particular the top ones.
My biggest issue with pep just now is, his stubbornness. I get that we are in a rut, i get we are extremely unfortunate, and going through a patch when things just aren't going our way. And i can be patient with the belief we can get out of that and get back to winning with confidence. Part of me even thinks, when we do, it will be even more dominant then when we were at our best, as we would have been through crap, got out of it, and mentally will feel that 'this is now our time' belief (which seemed to carry liverpool last season).
What would however help me, and possibly the players too, is seeing pep try anything and everything to win games, when things seem stuck, heck even desperate moves let alone any mildly alternative ones. But he doesnt. same formation starts and finishes, not all subs get used, sometimes none at all. Fuck me, i'd even take him throwing bloody zinchenko forward, or having all of jesus sergio mahrez and sterling on in the last 10 minutes when chasing it, but no, he can't even bring himself to bring foden on late in the derby, Bernardo at all at any point, or Torres who has been our best finisher when we desperately need a goal, never mind a hail mary on Delap.
And that is when a feeling of 'unlucky' turns into frustration. with fans, definitely, with players, potentially, and the media build their story, and the whole thing risks escalating.
I think that is his way of trying yo help reinstate the confidence, beleive in what we are doing, keep doing things right, and the margins will shift back and we'll get through it. Maybe he thinks that will mentality strengthen the players resolve. Maybe he just wants to prove a point. I certainly doubt he bloody lacks alternative ideas or creativity. But whatever his reasons, it isn't helping and the longer it goes on the more the pressure builds. At some point, just roll some dice and try something, and deal with the footballing science/philosophy once we are on top (of our game rather than the table) again.