"JaJuan Johnson has a long way to go in his NBA career. But the good news for Celtics fans is the rookie has already taken one very important step on the path to success: He's accepted the mentoring of Kevin Garnett.

Garnett can be notoriously tough on newcomers. If a young player resists Garnett's first offering of advice, there will be no second chance. Garnett simply moves on and leaves the youngster to fend for himself.

That's why it was such a promising development when coach Doc Rivers mentioned that Garnett had taken Johnson under his wing."