Instructors who weren't star pupils

[The Pred]

I think you have to define "star pupil." Do you mean athletic ability, catching on/understanding quickly, or willingness to learn?

I'd consider a star pupil someone who is genuinely coachable; they listen, ask relevant questions, and try their hardest to implement what's being taught.

I've met a ton of excellent athletes (not just in MA) who weren't coachable. They could easily do what they were told, but pretty much always thought they knew better and/or didn't have to listen. I wouldn't call them star pupils.

I guess catching on/understanding along with a willingness to learn.