Answer:
job posting and bidding
Step-by-step explanation:
Job posting is the act of making the availability of an open position known to prospective candidates. It gives a timeline within which to apply to the job.
Job bidding is the practice where a business advertises vacancy internally to staff already employed by the company. This is aimed at getting people with relevant skills, knowledge, and abilities.
The complaint from employees that they do not hear of a position till it is filled can be handled by posting job vacancies and doing job bidding.