Vantaggi
There's Leadership Acceleration Program (LEAP) for high-potential employees, but the same program causes feud between colleagues, especially if not all members in a team gets considered. The LEAP also becomes an excuse for senior managers to pawn off work to LEAP trainees, and to not mentor them.
Svantaggi
Low pay, overworked because understaffed, and takes years to get promoted to next rank, usually they just add a number to your position then add a few hundreds to your salary so it feels like a fake promotion