Forgive me for not reading all 7 pages, but...
KG has commented several times this season, moreso over the past couple of months, that he didn't expect to be carrying a team at this point in his career, and that essentially it isn't what he expected (signed up for), and that his body has been hurting due to the challenges of age. That's my paraphrasing, of course.
I don't think he signs up to be top dog, all-star, go-to franchise leader again.
It'll take some Popovich-like coaching for KG and Pierce to stick around much past this season.