There's some nice seeds of ideas here, but it's all a bit lost in (a) brevity - it's a deep topic so the post length can't do it much justice & (b) naïvety -

There's some nice seeds of ideas here, but it's all a bit lost in (a) brevity - it's a deep topic so the post length can't do it much justice & (b) naïvety - their extremely oversimplified explainer for the “C students hire A students” trope is that the C students are actually secret A students in other areas. This assumes a utopian world where academic-style assessment of study/effort maps to career progression. C students do well for a range of reasons including-but-not-limited-to: charisma, nepotism, unconscious-bias-hiring on the basis of race/gender/accent/height/hair/appearance, normative mental health characteristics. It's not because of their secret extracurricular study: that's in direct contradiction of the message behind the trope.