With all these scenarios you have to keep in mind roster space. We're already at the point where if you sign someone, someone else has to go. Here's how I see it:
Horford, KO, Zizic
Johnson, Mickey, JJ
Crowder, Brown, Young/Bentil
Bradley, Smart, Hunter
IT, Rozier, Jackson.
Young/Bentil fighting it out for slot 15. Since the premise of this thread is that we keep Amir, that means both Sully and Zeller are gone. Assuming also that GY gets stashed for a year.
If you sign someone like Dedmon, who goes?