This isn't as much about Dion as it is about how the Cavs are constituted. I'm not as worried about the on-court chemistry, as that will get ironed out over time. I just wonder if this group overall is well suited to play with Lebron. Lebron is at his best not just as a scorer, but as the primary facilitator of the offense. That means that the ball needs to run through him at all times. He's not a gunner--he finds teammates. And yes, Lebron played with "point guards" in both Cleveland / Miami, but in actuality he was the facilitator of the offense; those guys were only "point guards" in name.
Problem is, Kyrie Irving predominates the ball. Dion Waiters predominates the ball. Both of these guys need to get comfortable playing off the ball and not trying to do to much, because it bogs down the offense and takes the ball out of Lebron's hands. Ditto Kevin Love. Great player--love his game. But he's gotten used to playing on a team where he was the top dog, and could take unlimited shots. Great range for a big, but him spending 85% of his time on the perimeter might not be best for the Cavs.
And its only been a few games, but I have a feeling that their HC, Blatt, might be in a little over his head. Not that he doesn't understand the X's and O's, because he's been a successful international coach, but the NBA is a different animal. The season is a grind, the players can be a challenge, and he's facing a delicate balance of having a few veterans mixed with a bunch of younger players who are still figuring things out. Some coaches excel at relating to veterans [Doc Rivers, Poppovich, to name a few], while others are a better fit for teaching the game to younger players on inexperienced teams. What does Blatt excel at?
There's only one basketball--and the Cavs right now might not be constructed to maximize Lebron's talents. Sometimes, less talented role players might be a better fit, even though a player like Kyrie Irving is surely more talented.