Comment by sqldba

Agreed. Whenever I hear a self important IT person saying "this place WILL go under without me" I know I'm dealing with someone delusional or inexperienced.

A company of any size can continue on even if severely crippled with nobody left who understands how anything works. I've seen it time and again - also even where I've felt I was important.

Minimal viable product and vendor lock ins are powerful real world things.