When I was a Lowe's manager and expectations were not met thefirst question was "where is the documentation?".
Now, that's not always a bad question. As a manager the job is to make sure employees are doing their job and the store functions. The problem is having a conscience and not writing someone up when you know there was no way they can realistically meet certain expectations. You get seen as soft by upper managers. You cant say that no one can meet these expectations so you either get yourself in trouble or sacrifice an employee.
I refused to sacrifice others and it cost me my job. I wrote people up when they deserved it, like attendance or actual bad performance. I wouldn't write someone up for little stuff. Problem is the upper managers only saw the little stuff.