@Crimsonorblue22 you kind of hit on the rationale of my point there, in part. With Traylor we have a very small front line. Further, we have the defensive liability of Ellis. We have none of our main three guys even listed over 6'8". Which means they're all, at best, 6'8" in shoes.
Second, there would be concern about scoring. Traylor is not a gifted scorer. His improvement, though, was terrific. But it would be pretty hard to improve at the same rate. If he did improve to the same degree, heck, start him. But not expecting that improvement. My concern with scoring also lies greatly with Ellis -- we saw him taken completely out of games either by a long/athletic defender, or by Self.
We would be smallish, with one being a subpar defender (Ellis) and one average (Traylor). Alexander is supposed to be a "plus" defender. And there isn't likely reliable scoring. That creates uncerainty. But I think @icthawkfan316 is right. There would have to be a strong component of either Lucas of Mickelson, if for nothing else because of height.
Really, I do have some faith in Lucas. If I was a betting man .. which I am from time to time .. I would bet that if we lost Embiid, didn't get Turner, didn't land some astounding transfer .. that in the last half of next season Lucas would be playing #3 post player minutes.
Also, @Crimsonorblue22, I had said that Ellis was much closer to TRob body wise, meaning as compared to Traylor. On a continuum, Ellis was much closer. But I don't think his body is TRob's, for sure. And you said Traylor reminds you of TRob -- here's my list 1) both black, 2) both tall, 3) both have tattoos (I couldn't leave that out), 4) both have a good motor .... now I'm struggling. Anything else? Maybe both althletic, but Embiid was athletic.