Except leadership is largely not from employees moving up the rank
Sundar (CEO) is from Mcksinsley.
Ruth (President) is from Morgan Stanley.
TK (Cloud CEO) is from Oracle.
Mohan (YouTube CEO) is from DoubleClick which is Google at this point (~15 years).
---
Largely the story of the past several decades is that "doing your time" is a bad strategy. Always move to another company to go upwards.
Wait, but Sundar Pichai was there pre google IPO as a Chrome PM, and Neal Mohan was there for 18 years. How are they examples of "doing your time" being a bad strategy?