No, but I don't think chemistry will be enough to take a bunch of washed players to the championship again. Don't get me wrong, I think it is really cool that a bunch of players get to play with their really good friends. I just don't think the talent they brought in in the off season (Russ, Dwight Howard, Melo, DeAndre Jordan) is a good fit. For example, LeBron needs the ball in his hands and for some reason they think bringing in Russell Westbrook, a point guard who also needs the ball in his hands to be even slightly effective, was a good idea.
In the much tougher Western Conference, I think the Lakers will make the playoffs but certainly in the bottom half of the bracket.