A new employee spends their first weeks doing two jobs. One is learning the work. The other is reading the place: what is said out loud, what is understood without being said, what happens to people who ask questions, and whether the description in the interview resembles the room.
Most of what they learn in that second job is taught by logistics. A laptop that arrives in week three teaches that the unit does not plan for new people. Building access that takes a month teaches the same thing more expensively. Software a screen reader cannot use teaches something sharper: that somebody chose this and did not think about you. A first month with no explanation of what good work looks like teaches people to guess, and the ones who guess best are the ones who have worked somewhere like this before.
Then the ordinary year starts, and the decisions that matter most are the ones that feel smallest. Who gets the redesign and who gets the queue. Whose one-on-one is protected when the calendar gets tight. Who hears about the temporary assignment before it posts. Who is introduced to the director and who is not. Each of these is defensible on its own. Over a year they compose a career, or fail to, and the supervisor who made every one of them can usually not recall making any of them.
There is one more thing to watch, because it is nearly invisible from above. Some staff carry work nobody assigned and nobody counts: explaining a community to colleagues, translating a document informally because they can, being asked onto every committee that needs to look mixed, and absorbing the distress of coworkers who want somewhere safe to ask. It is real labor. It is unpaid, it is not in the work plan, and it competes directly with the work the person is actually reviewed on. Asking a staff member to represent a community is asking an employee to do a second job for free, on top of a first job they are being judged on.