That's one of a post. From appearances and history, it's likely the "plan" is to stay the course and just make adjustments. If there was reason to think they would blow it up, it changes everything.
Cap space absolutely WILL play a big part. They have been in cap for so long, and won't get out until 21-22. But if they pay to keep DDR, Poeltl, and Forbes they will have a lot of that space committed ahead of time. You can't build a team without managing the timing of contracts along with everything else.
Personally, I don't think they can build a team around Aldridge - even partly around Aldridge. He's aging, and I believe that he will go elsewhere when this contract is up. A lot of people will scream, but the DDR we have seen for the last month is worth building around. He is what he is, and he has some holes in his game, but put the right pieces around this DeRozan and he's a strong building block. They have some good young players, but they don't have another piece ready to step up to that right now.
So I think they either have to build around DDR - which means specific pieces to complement him, or blow it up. Keeping Aldridge is self-defeating, and keeping DeRozan without the right players around him is just as bad. And since the young guys are pretty redundant, yeah, they need to be open to trading them.