It's decision weekend in Boston, with Kevin Garnett expected to make a decision on the future of his career.

Bob Ryan says if a contender offers Garnett more money than the Celtics are willing to pay, then KG will be shipping out of Boston. But the question is more complicated than that.

At 36 years old, Garnett is no spring chicken. It takes more effort to play the game at the level he expects of himself, and the big question Ryan thinks Garnett should be asking himself is, "do I really want to do this again?"