I think the Lakers go into the season with what they have. I could see bringing Rondo off the bench so they have a play maker on the court when Lebron rests, and starting Avery Bradley as a 3 and D PG.
On the trade front, I can see a Kuzma for one of Cleveland's young PG prospects making a ton of sense. I don't think the CLE backcourt fits long term, and in LA, I don't love the fit of Kuzma with James/Davis. Sure, it could work, but I think that LA is better shifting James between the 3/4 and Davis between the 4/5 depending on matchups. If your doing that, using Kuzma to upgrade elsewhere is a smart decision.
Then there is the buyout market. Names like Goran Dragic, Kyle Lowry and Chris Paul could be available
Call me crazy, but I think Chris Paul agrees to give up the player option on his OKC deal ($44MM) as a buyout and signs with the Lakers with "an understanding" that he will be offered the full non taxpayer MLE for 3 years, recouping $35MM of the $44MM he gave up to force his way to the Lakers. And not for nothing, Lebron James has a production company in LA that can close that gap further.