For me it's a combination of factors, like you said, Ime Udoka bring his experience in this organization coming from Celtics (which he brought them to the Finals but lost eventually). And then Brooks, who could lead and probably this is what he is doing right now and doesn't want to create anymore distractions. And Jalen Green, highly touted coming in the NBA and supposedly should win the Rookie of the Year. But now everything is working out with them. The experience of Fred VanFleet and Dillon Brooks to lead the not so experience team right now.
Yes, the experienced of both Fred and Dillion gives them that matured approach on how coach Ime wants the system to work for the entire teams, we seen respect and trust with all the players who are inside the court, with that good development, this young team might continue to developed and their quest for being a playoff contender might be shaping now, I like the way they are bringing the competition and with all the players are contributing with the roles that they are being assigned, we will see more good games from this team, and maybe the chance of taking the last spot for the play-in still on the process.
I really like what the Houston Rockets are cooking in here. They hire a good coach, which is Emeka. Even though he has some issues with Boston, Houston has taken the risk of hiring him to run, build, and create a culture there in Houston after James departure. I think Emeka is one of the reasons why James' comeback to Houston is voided, since he wants to create something, a culture, so, if you think about it, signing Fred makes much more sense than signing Harden. Harden might become a diva to the time and might chuck all the shots and may steal the spotlight from the young players. With Vanvleet, he can be the veteran guard that can help the young players develop and be the voice in the locker room. They also sign Brooks, which can be an energizer for the team; he can add shooting and defense for the team.
Adding these veterans really boosts their roster because one of the reasons the Rockets sucked too much last season is that they don't have a veteran presence that can say what the wrongs and rights of the young players are. This season, Vanvleet and Brooks can call them out and discipline them.