Your tiers know what a player was worth. They do not know who is drifting.
The players worth working this month are the regulars whose rhythm has broken, and a tier report will never show them.
Every player development team has a tier structure, and the tier structure is honest about the job it was built for. It sorts players by what they have been worth over a qualifying period. A card earned on real theo means something, and nobody on the floor needs convincing of that.
The trouble starts when the tier report gets used as the list of who to work this month. A tier is a record of a window that has already closed. It keeps reporting the same thing long after a player's behavior has changed.
The regular who went quiet
Think of a local who came in most Fridays and some Sundays for two years. They still hold the card. The ADT that earned it still sits inside the qualifying window, so the tier report puts them right where it put them last spring, even though they have not walked in for six weeks.
A host who knows that player by name might catch it. A host carrying a few hundred names will not, and neither will a report built to rank people by what they already spent.
Measuring a player against their own history
Drift only shows up when a player is measured against their own pattern of trips rather than a threshold everyone shares. Two players can hold the same card and have nothing else in common. One is in twice a week playing small and the other is in twice a year playing big, and four quiet weeks means something different for each of them.
Measured that way, the regular who has gone quiet stands out on their own. They do not have to fall out of tier first, which is usually months too late to be worth anything. The property gets to see them while there is still time.
What the floor can use
A ranked list of the players whose pattern has broken, with an offer amount already priced off the property's own comp matrix, is a different morning than a sorted export of the ratings file. A host still reads the name and still makes the call. Somebody at the property approves every offer before it goes out, and players who have opted out or self-excluded are never on the list.
Tiers keep doing what they do well. They set recognition and they hold the program together, and asking them to also flag who is slipping away is asking for something they were never built to give.