"We automate things"

I chat with one guy online and discussing about life of a geek who can spend his life at the outside world and less time computing. We made hypothethical conclusion, which are:

1-He is a sysadmin, and he can spend much time outside because;
a) He did a very good script, and if his machine went wrong, the script will automate jobs

However, this hypothesis got a glitch which was;

1-If his job can being replaced by scripts, then why should we hire him any longer?

:-p