> If your engineers don‘t write tests you hired the wrong people.

Disagree - if your engineers don't write tests, you need to clearly state to them that tests are table stakes, and create an environment conducive to the outcome you want (set up CI, make it fast, set aside time for test-writing hackathons).

If your engineers don't want to _follow_ that leadership after it's given, then yeah, you hired the wrong people - but don't demonize employees for not doing something they weren't told they need to do.