Major, massive TP for the OP. Great post and 100% on the money.
I was going to post something somewhat similar but I'll just add it here.
When Bill Russell interviewd KG in 2008 he told KG "that if he didn't win a ring he would give KG one of his own. He said it was because KG always played the game the way it was meant to be played."
Russell then told KG something else. He said to KG, "but I'm not going to have to give you one of my rings beacuse you're going to get one of your own. BUT...if you want one of your own, you're going to have to put your arms around the rest of these guys on your team and carry them with you."
Russell said this because he knows there are only so many players out there like him, or KG. They don't come along very often. And if they want to reach the mountain top, they are going to have to be willing to bear the weight of carrying everyone else with them.
The names of some of the guys who have been willing to carry that weight through the course of the NBA are:
Bill Russell, Larry Bird, Magic Johnson, Michael Jordan, Kevin Garnett, LeBron James etc...( Kobe is there too but he just lacks the class and character of these other true leaders IMHO. he is fierce though).
They combine the unique qualities of great skill, great heart and passion and an incredibly intense competitive desire.
I call them "the engine of the team", they make the team go. Without them, the team is a shell of what it is with them. They drive the team to greatness. Everyone feels stronger and more confident with them on the floor and feel like anything is possible. They elevate everyone's game by their presence and fire.
You can't replace it. And that's why taking KG off the Celts would be like taking Kobe or LeBron off their teams. KG may not put up the numbers of those two guys, but his imporatnace to the team is the same. And his loss is similar.
Take Kobe or LeBron off their teams, they struggle to make the playoffs. It's the same for the Celts and KG.
And there you have it in a nutshell as the OP stated.
It doesn't matter if every guy on the team is a 10 year vet, you can't replace or fake what KG brings. It's irreplaceable and very unique and there are only a few players like them. maybe 10-12 in the history of the league. Maybe that many...
It's not a knock on Pierce or Ray. They're both hall of famers but what KG is about, you can't learn it or aquire it. You either have it it or you don't.
KG comes back healthy, truly healhty?...and everyone is healthy?
Pierce's legs will look younger...
Ray's shot will look sharper...
Perkins will look bigger and meaner...
Rondo will look better in his good Rondo place...
Rasheed will look more Rasheed...
so on and so forth...
and we will win another ring...
No KG? we're out.