Dropping £100m+ on De Bruyne and Sterling was the only statement that was needed tbh.
Communicates with titles, investment into the stadium, buys a shed load of players, doesn't accept not winning titles so just sacks people and/or signs more players. Created an insane state of art academy/offices etc. Created an MLS team with the Yankees for shits and giggles.
Don't need to fucking talk to your fans when you're busy running the club to win something and achieve something, even if it's all on the back of cash, cash and more cash.
Mansour is actually pretty patient with managers although your main point is obviously correct