According to the Convention of the league, most of the players below the third grade are Rookies of each team, while those who have no contract are usually short-term contracts of 10 days due to expiration, draft drop, etc. The rule of a two-way contract is that players must be under the third grade. The two-way contract cant play in the playoffs with the team until it becomes a formal contract. This also means that if there are two-way contract players who have lost their playoff qualification, it may be a temporary supplement to the playoff team. However, it also needs the permission of the previous home team.
In addition, the NBAs Development League g League has announced in advance that it will not play any more games. The best of these players may take the last bus to qualify for the playoffs. But as expected before, the team is unlikely to give these players too many opportunities. This rule is just to ensure the quality of the teams training. It has been prepared for a rainy day and can not really solve the teams urgent need.