I think he's trying to see if they can sign 2 FA and trade for LeBron, but that also doesn't make sense because other than LeBron and George, the FA class is pretty weak. Either way, Randle can't make enough money to accomplish this trade:
Base year compensation
Certain players in the first few months of a new contract are subject to base year compensation (BYC). The intent of BYC is to prevent teams from re-signing players to salaries specifically targeted to match other salaries in a trade (in other words, salary should be based on basketball value, not trade value). A BYC player's trade value as outgoing salary is 50% of his new salary, or his previous salary, whichever is greater. BYC applies only to players who re-sign with their previous team and receive a raise greater than 20%. It also applies only when (and as long as) the team is over the salary cap. Under the 2011 CBA, players subject to BYC cannot be traded before January 15 except in a sign-and-trade, and BYC is only applied to outgoing salary in sign-and-trade deals.
So they'd either have to include Deng or sign Randle for $34 million, which is not possible given his years in the league (his max is $25,250,000).
To answer your general question, though, I think if the Lakers offered Deng, Ball, and Ingram for LeBron (he's already leaving), I think the Cavs for sure take that deal. So you don't even need to deal with Randle. The Cavs can flip Ball and Ingram for future picks if necessary while having a 5 year rebuild horizon.