The concept of in season training is to leave everything on the court, not the gym.
1 set of power movements while staying in positive failure mode, the rest is maintenance reps, 1 to 3 exercises per body part. Mmonitor your body.
if your schedule can accommodate it, one body part is fine.
Monday example. Squat, max 80% lifted explosively. 3-8 sets, 6-8 reps. Listen to your body. This is not about beating PR's. This is about maintaining explosive strength on the court.
Then choose balancing exercise and do 3-5 sets with 12-15 reps per exercise. Lunges, extensions, curls, knee raises, etc. All legs exercises. Again, not about PR's this is about keeping muscles limber and injury free for the court.
I sometimes incorporate only power movement for the day (ie: jumping square) if I feel it is warranted. But that takes practice and years to know how your body responds.