I'm confused by what you mean saying that none of these players has ever won or competed as the man on their teams
Russ was the MVP last year and arguably had the best season in the history of basketball. He also led okc many years in the playoffs when KD disappeared. Anyone that follows OKC basketball closely knows that Westbrook carried OKC in the playoffs the year okc made it to the conference finals and that was a year the West was stacked. Look at the last few years OKC lost in the playoffs when KD was healthy and you'll see he was the one with the 4q turnovers, missed shots, not Westbrook. KD never won anything until he went to the best team in the NBA that probably would've won it last year even without him.
As for PG13 and Melo, well I kinda agree. Melo has been cancerous but he's in a new spot, you're acting like guys don't change, and I disagree. I think Melo might actually be the beta and when he gets comfortable he's gonna be a good contributor. His shooting % will be an all time high this year.
I don't know much about PG13 but last night he missed a lot of wide open 3's because Russ drove and kicked out. I can't imagine he'll miss those all year but maybe, I know the least about him.
This I promise, by midseason, my opinion of this team will be right and yours will be wrong.