When we fail to set boundaries and hold people accountable, we begin to feel used and mistreated. This can even cause us to go into a cycle of blaming and shaming (whether ourselves or others). Most importantly, we will not be able to resolve the original problem. Setting boundaries and establishing accountability will help you communicate your needs to others while still being compassionate.
Set clear boundaries and appropriate consequences for not respecting those boundaries.
For example, if you have an employee who is slacking off, clearly inform them of the standards they are expected to meet and tell them that they will receive an official warning if they do not comply.
Follow through on the consequences.
Otherwise, people will begin to dismiss your requests, even if they sound like threats or ultimatums.