I like KNB in a motivational way if you think of it as learning what your skills can bring to a team, and that you don't have to be like others to have an impact. In a way that's like Hinata in Haikyuu, but Hinata strives to be the ace whereas Kuroko is more comfortable playing from the shadows.
I haven't watched Ping Pong so I can't say much about that one :p
Ping Pong is great because it shows the different types of players and follows through to the end on their arcs.
That's pretty cool, I'll put it on my to-watch list!