I believe the Dwight deal is non-guaranteed. So if he doesn't prove he deserves a roster spot, the Lakers will be sure to cut him.

As for Cacok and his Exhibit 10 deal, I didn't realize that these deals allow a player to be picked up by an NBA team if they end up in the G League. For example, let's say Cacok gets cut in training camp and reports to the South Bay Lakers. All other 29 teams could then give Cacok an NBA deal if they wanted. Only thing is if he signs a 10 day contract with another team and they don't keep him after that he must report back to South Bay. Pretty good deal for Cacok, if you ask me.