Yeah, I have to admit I am changing my mind on Simmons. I wanted him badly because he can guard almost anyone. Something we needed help with.
Plus at 6'11" 240, I envisioned a PF who was an excellent ball-handler and who could be surrounded by multiple shooters. That was intriguing. But you are right Nurk would have to be replaced by a center who can shoot. (and play D) Not always easy to find.
Neil found a PF who is as effective in his own way. I would say Simmons is a better overall defender than Nance (In terms of guarding more positions)
and is a better ball handler, but Nance is no slouch at either. Larry can't lock down a guard, but he is more physical against bigger players. (and is at least an average shooter)
The bottom line is we basically only gave up a lottery-protected 1st since DJJ was not going to play much anyway. So Nance came much cheaper than Simmons. And if they really want to trade CJ, they still can.
One edit to this, a younger player is only more attractive if you can keep him past his contract.
Not sure we could in Simmons's situation.