When Gasperini was here, our players weren't ready for a 3men defence, but funnily enough most coaches since then use the 3men defence, FIF was totally against him as well because we weren't winning enough games.
Gasperini has been great for Atalanta, maybe he came to Inter too soon. I blame the players for not going "full Gasperini".
Pioli was hated too, but he is absolutely not as bad as some members here said. I think he is like Mancini, just more meticulous with details, like when to choke the midfield, how to transform the formation while attacking,... maybe it was a bit messy with Inter, but at Milan they bought in his way of playing and at their best they are a 4/5 team no matter how many starters they change through time. They had a drop in form, but not a drop like Inter had and I still see them finishing in front of us.
Mazzarri as well, I thought he did good enough for the shitty Internazionale squad he had. It's said he went from a strong Napoli to shitty Inter and now can't get a big club anymore. We cursed him.
Even Spalletti and Conte got hated because of the way they played (and because certain drama happened), but they leveled up our teams mentally and structurally. If Mancini+Spalletti+new owners never came here, I wonder where this club would've been. Probably still no CL.
We keep shitting on coaches, but to be fair, there are no perfect coaches...and if players aren't playing at their 100%, what is a coach with a limited squad to do? If Lukaku and Lautaro ain't scoring, should Inzaghi start Correa more often? Should Barella be benched because he isn't delivering, so that Gags plays instead?
There is a huge problem mentally with Inter players. Has been for the most part of this past decade. As soon as we get a few new exciting players, we get better for a few months, but then we fall off when that "excitement" ends. Even the new players fall off. And it fluctuates too much. Brozović feels the worse at that, he has the biggest highs and lows.
There are a few exceptions like Cancelo, Eriksen, Hakimi, Hakan, that didn't start that well, but then became the dependable pieces of our squad. Sadly only Hakan is still here. Do with that information what you will.