The Suns defensive identity is coming together. Igor basically surrounded Booker and Ayton with defensive wings for a good portion of the 4th quarter.
Oubre had a good debut. He played well enough for Igor to keep him in during the most important time in the 4th. Money may be an issue keeping everyone though. There's a good chance that most of the offseason capspace will be used for a point guard. Oubre will want at least 10-15 million. Richaun Holmes has to be re-signed too.
It's possible to sign a point guard with cap space and then use Oubre/Holmes bird rights to go over the cap and keep them. It all depends on Sarver's willingness to go over the cap for a lottery term.