You are coming from a rational position with the focus on optimization. Large organizations are not rational, and rarely optimal.
Executive backlogs are so deep that purposefully re-fitting whole team to another job will never end up on the top list. You might see sometimes organization will rehire a whole new team with exact same skillset, and set them to do similar tasks. It happens because execs know how to setup things from scratch quickly, but running a re-fit is a custom project that requires problem solving and large amount of exec drive, and exec resources are extremely scarce and expensive.
From the outside this will seem totally irrational and suboptimal, not to mention unfair. But that's how large orgs operate.
Executive backlogs are so deep that purposefully re-fitting whole team to another job will never end up on the top list. You might see sometimes organization will rehire a whole new team with exact same skillset, and set them to do similar tasks. It happens because execs know how to setup things from scratch quickly, but running a re-fit is a custom project that requires problem solving and large amount of exec drive, and exec resources are extremely scarce and expensive.
From the outside this will seem totally irrational and suboptimal, not to mention unfair. But that's how large orgs operate.