"It’s hard to escape from the shadow of your mentor and find your own footing."
"It’s a harder sell when you are promoting from within..."
"A16Z used to have a rule where no one internally would be promoted to be a GP..."
From where I come from, the term glass ceiling is not just limited to women but all forms of discrimination at workplace denying someone/anyone a rise up the ranks. In the US, the term seems to be exclusively used in the domain of gender dynamics.
"Invisible but real barrier through which the next stage or level of advancement can be seen, but cannot be reached by a section of qualified and deserving employees. Such barriers exist due to implicit prejudice on the basis of age, ethnicity, political or religious affiliation, and/or sex."
"Since becoming commonplace in contemporary language it [glass ceiling] has become generally applied to obstacles encountered in any field and by any group"
Probably best to stop there then, as this has nothing to do with it.