Establishing whether it is actually a method problem
A complaint about an amenity that is not clean enough could be a cleaner using the wrong product, a shift that has become too tight for the area, a dispenser that empties before the next visit, or a scope that never included the item being complained about. Only the first is fixed by retraining. Assuming method every time produces a cleaner who is repeatedly corrected for something that is not their doing.
So the first step is to watch the task in its normal conditions. That means attending during the shift, not walking the building the next morning. What the supervisor is looking for is how long the task actually takes, what the cleaner uses, what condition the area is in when they reach it, and whether the sequence gives them any realistic chance of the result the client expects.
