According to NBA regulations, the maximum amount of cash transactions each team has in 2020-21 season is 5.6 million US dollars, which is used to compensate for the cash in transactions and make up for the difference in the value of trading chips.
The Rockets have run out of $5.6 million, of which they gave 4.6 million in cash to the pistons when they traded for wood, and another 1 million went to the Lakers for a second round show, Martin Jr.
This means that if the Rockets do transactions in the future, they have no cash chips, and can only exchange players and draft rights, which is easy to produce trade inequality and difficult to reach a deal.
And the Rockets are waiting for a big deal, especially Wes and Haden have applied for a deal to leave the team. Both of them dont want to stay in the Rockets, and the latter has been brewing a deal.