The Manual/Expectations in Business Setting

I totally understand the concept of “The Manual,” not having expectations for people, and loving them unconditionally and I find it pretty simple to apply with personal relationships such as friends, family, etc.

However, I’m wondering how this concept applies to a business setting, particularly with business partners and/or employees.

If you partner with someone or if you hire someone, it’s expected that you’ll have certain expectations/requirements that they need to meet, so what do you do if they don’t meet your expectations?