ON a related note: Do the Lakers have to trade Kobe? No - but they are in a real pickle as a franchise (and it is wonderful to watch).
I think they made a fundamental miscalculation in handing the franchise keys to Kobe a couple of years ago...but not for the reasons most people would say (personality, primadonna, etc).
No, they screwed up because he is a shooting guard. By far the best shooting guard in the world, and best in the last decade. But still a SG. If you look throughout league history, shooting guards not named Jordan do not deliver titles by themselves.
Sorry, Laker fans, but it is true. And don't bring up Rick Barry's 70's Warriors. He was a small forward and it was a bizzaro year when they won.
The list of teams that featured one great SG and a mediocre supporting cast does not bode well for the Lakeshow future. Ray Allen's Bucks, Gervin's Spurs, Drexler's Blazers (before they got a frontline), Wade's Heat before Shaq, Pierce's Celtics (until Jefferson matures), and on and on. All entertaining teams, but none winning a title or coming very close.
With the exception of Jordan's Bulls, titles in any era of this league come from superb big men (either 4's or 5's) paired with great guards (more often PG, but can be a SG - Drexler, Wade are examples) and supporting casts that are well balanced across required roles (shooters, defenders, etc).
It hurts my FastBreaking Suns heart to admit it (since it would be a hoot to see an all-world PG, an all-world SG and 3 guys under 6-7 race to multiple titles), but history proves it out.
Kobe is great, but he is not Jordan. Maybe, just maybe, he could have come close in a previous era, with the old man-to-man defense rules that rewarded good isolation players and showered riches (in the form of foul shots and room to operate) on the truly great iso players. But not with the current rules.
The limited zone D allowed today negates much of the bonus that having the 'best isolation player in the world' used to give a team. I actually think Jordan would struggle under today's rules to dominate as much as he did (still would win rings, but fewer).
So, the Lakers should have resigned Kobe and made it clear he was not going to get to be Jordan Part 2. He would get to be Kobe, and they would find a suitable big man to chase titles with him.
Oh well, most of the league is probably not crying for the Lakers mistakes.