How do I set clear standards for my team?

Your team is being judged against a ruler they cannot see. The standard is real to you, but to them it only appears the moment they fall short of it. That is not fair to them, and it is quietly frustrating for you too. People cannot hit a target you have not shown them. When the expectation stays in your head, every miss feels like their failure, when really it is a gap in what was said out loud. The fix is simpler than it feels. Write down what good work looks like to you, plainly, in a few sentences. Then say it to your team before the next piece of work, not after. Clear standards are not harsh. They are a kindness, because they give people a real chance to succeed.