One of the reasons we're so big on stealing each other's senior technical people in my university is good luck trying to hire good senior sysadmin and so on people from outside. Partly this is because the university environment is increasingly different from corporate IT, and partly this is because of, uh, well, how much money we (can't) offer. I'm pretty sure senior people moving in have to want a slower paced and lower paid life (so far with no 'AI' mandates).