your large firm is about to change to a customer centered organization structure, in which employees who have rarely had customer contact will now

your large firm is about to change to a customer centered organization structure, in which employees who have rarely had customer contact will now likely significantly influence customer satisfaction and retention. As part of the transistion your superior wants an accurate evaluation of the morale of the firms large number of computer technicians. What type of sample would you draw if it was to be an unrestirected sample?