Most oil companies know how screwed up Chevron's personnel processes are.
Job posting by many was viewed as a magic elixir to give control to employees over their careers. In the good times, job posting and PDC was positive. In bad times, it destroys the morale of the company and it destroys many a career and gives bad managers excessive control over their employees.
When the industry turns around Chevron will have difficulty attracting experienced employees to join. The good major oil companies do not use this process and only low performers are at risk. Fixing this process is the most important fix the company has if it wants to turn around and retain and develop talent.
There is no evidence that management cares about fixing this.