I don't understand the 2nd half of your post. 2nd/3rd options in the range of 10M are the sort of pieces you typically try to add last. You build a team around a franchise type player, add pieces that fit with him, then when you see some success, add that last piece to put yourself over the top. See the Indy David West signing. In the meantime, having that #2 guy take up all your shots just means a) any potential #1 guys you might have in the system get overlooked and b) you have that much less salary cap flexibility to work with.
And I want to be clear here. I am not saying DD is useless. Nor am I saying he cannot contribute to a winning team. I am saying, at his salary, I expect more than an inefficient scorer who doesn't rebound or defend. I am also not saying he is not valued around the league - his recent play and especially his recent recognition and exposure is exactly why he should be moved now while his value is high.