As a senior in college I worked as an assistant basketball coach at my high school, mostly with the JV team. Most coaches on the sideline use a whiteboard and dry-erase marker to quickly diagram plays. Chances are that will continue to be more efficient than breaking out an iPad (though you never know).
One thing I used to love in basketball video games was the plays you could set up and call in the game. In the "pause" menu there would often be an animation that showed the way that the plays would unfold.
I've made a very simple Explain Everything project file with a basketball court and shape objects to represent the players. Using the 'mixed recording' mode, it is possible to animate each player one (or two) at a time to get the same effect as those video game pause menus. Here is the project file and below is the video proof of concept.
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