Ramsdale 23, White 23, Odegaard 22, Tomiyasu 22 are the main first team signings & aren't exactly kids, & they all have a decent amount of experience & first team minutes for their age as well.
Lokonga & Tavares are younger but playing a more squad role.
Agreed about the results, so let's judge him on if the team improves position this season or not. I've consistently time & time again said that as well.
I did point out the selling of Coutinho as helping to allow them get the players they want.
Like I said, I think folk are exaggerating Project Youth. It's a young team, but many of the signings have good experience for their age. How many games has Odegaard Ramsdale played already for instance. It's not anything new for teams to target signings in the 22-25 bracket to help build.
Of course many things can go wrong with a project, but that's the same with every project, every managerial appointment even. That doesn't mean you shouldn't try dwork to some sort of plan, in fact we've been criticised for not seemingly doing so in the past.
I don't get your last paragraph? How do we know about mentality as players? Edu was a member of the Invincible team, & FA Cup & Copa America winner. Arteta was a captain of FA Cup winning teams the Pep headhunted from Arsenal when he was retiring because of the qualities he seen in him.