The whole concept of KG sitting is unreal. Simply because The Big Three is the core of the team and remains The Big Three until retired. Which means at least 2 more years. The only reason why you people keep saying KG is getting old is because you look at his age and not his game.
Even if we trade for Kevin Love and get him, without trading away our starting five, we still keep KG on the starting team because he's much, much more experienced, better defender and, again, part of that group. But also because our second unit can already score as much as the first. Imagine the fear factor of Dooling's shooting abilities, Avery's defense, Daniels' defense and penetration, Bass' shooting and Kevin Love's rebounding on both ends and shooting. Oh, and also, Avery can shoot.
On one side you have the experienced team that knows every trick in the book and can still play like they did 10 years ago, and on the other you have a young, athletic, hungry team that sounds better than 90% of the first teams in the league.
The only way Kevin Love would get starting position would be instead of Jermaine, but only if he's injured. It's not about the privilege of starting as much as each group's impact and style of play.