Symptom: People don't have the time to respond quickly to customers' inquiries.
If people are so busy working on current projects that they have no time to respond to customers' inquiries, tomorrow's business will suffer. Some time must be set aside for this "overhead" task.
In a company or a staff function that charges for its services, this indicates that pricing does not not fund account for some critical overhead functions.
In a staff function that does not charge for its services, this indicates that the time made available for clients' projects is too great, leaving too little for overhead functions.