I think that the shareholders have Disney on a 3-5 year "correction" course plan. Right now isca TERRIBLE time for anybody to sit in that CEO chair. Chapek will be used a the "bad guy" so that these can be implemented. Its going to be ugly and dirty in the mean time. They identiify budgetary problems, fire executives and make big org chart and structural changes. They will cut "fat" and get lighter, leaner and more financialy healthy.
After this hard process is finished, the real next-gen CEO will be assigned and will take a better-prepared company into the future.
I suspect that Chapek is just here to take and absorb the fire needed durring this re structure.
Just my guess folks....