>>11292155What a load of bull.
My sample size is facebook, google, microsoft and Twitter research divisions, novartis and merck, 2 startups that evolved into medium companies and sold, plus 2 hospitals I won't name. 5 of these are first-hand, 5 are second-hand (friends and colleagues). I could also add huawei (also research) but that's from someone I don't know enough to ensure the veracity of the claim. This ranges from ML, fundamental math, bioinformatics, biology (wetlab, everything from ms to hts to seq), and cryptography.
I've only seen internal promotions in the following cases:
Jr -> Sr (no change in hierarchy, just pay).
Someone retires (happened 3 times, I personally saw 2, both were 100% political and had nothing to do with the employee's competence, the 3rd was like that as well from what I'm told. In particular, in one case, an actual competent employee was supposed to be promoted, then another employee demanded a meeting with management, and in the middle of the promotion announcement management barged in and interrupted to say that the other employee was getting the promotion).
I have also seen 2 new teams and one new org be created. In that case, all managers were external but other employees were shuffled over to bootstrap it, rest was filled by a mix of internals and externals.
As I mentioned, I have seen 2 startups who were bought. In both cases, once purchased, the leaders of the new faction were externals (neither from the startup, nor from the company that purchased the startup). In one case this spanned 3 roles, as they fired the CEO and a manager, while in the other it was just one role.
