Dion eventually have a Jamal Crawford or Ginobili type role. Those guys are invaluable to their teams and both also have the green light to shoot as long as they are doing all the other little things on the court to help the team.
The problem with Dion filling the Ginobilli role is that the Cavs really don't
have a Ginobilli role. The Cavs have 3 guys who were in the top 15 in scoring last year, including the Nos. 3 and 4 scorers in the entire league. The Spurs didn't have anyone in the top 30 scorers.
The only way to get nearly enough shots for the Big 3 -- to truly take advantage of their scoring abilities -- is for each of them to get more shots when one or two of the others are on the bench. Ginobilli, on the other hand, was expected to carry a major part of the scoring load because nobody else averaged even 17 ppg. And even then, in that role, Ginobilli played less than 23 mpg, and scored less than 13 ppg. If you look at how the "Ginobilli" role is much smaller on this roster, than we can't expect Dion to even get that many shots.
I'd agree that this reduced-Ginobilli role is the one that Don best fits on the Cavs, but I can't believe that a young guy like him really would be satisfied with that. Given what we've got with the Big 3, what the Cavs really need in terms of bench scoring are role-playing
efficient shooters. Dion is really more of a high-volume
scorer, not a high-efficiency shooter, and I just don't see a fit that will make both him and the team happy.
And while I might blame Dion for how he acts sometimes, I wouldn't fault him for believing that there is no suitable role for him on this team that takes advantage of his talents/potential. Maybe if he was 28 and had failed in the role of leading or secondary scorer for some team, fine. But at this point, I can't fault him for wanting the chance to prove he's more than a 20 mpg, 10-12 ppg kind of guy.