2. Wall's intangibles could be beneficial for the Houston Rockets
The things that don't get discussed enough whenever John Wall is mentioned are the little things that he brings to a team. In other words, the intangibles, which are often just as impactful as the on-the-court performance.
Specifically for the Houston Rockets, who will be one of the younger teams in the league (along with the Oklahoma City Thunder) and could use Wall's veteran presence. Wall could help push Jalen Green, as he's a former #1 overall pick and can relate to what the expectations will be for Green.
Wall could also help Kevin Porter Jr. and Green both become formidable defenders, by providing a textbook example night-in and night-out of how to man the fort in the backcourt defensively. This will have a profound impact on the development of Green, whose weakness is on that end of the floor.
We've heard that Green does well when he's challenged, and Wall could help in that regard on the defensive end of the floor for Green (and Porter also). In addition, Wall has volunteered for the assignment of taking Porter Jr. under his wing and helping him mature both on and off the court, which have been concerns for Porter throughout his NBA career.
Wall has also been a big help for Rockets coach Stephen Silas, who has gone so far as to label the 5-time All-Star as an extension to his coaching staff. With the Rockets' influx of young talent coming in, having a veteran who has accomplished the milestones that Wall has would be very useful for the young, upstart Rockets.