OK. It's the only published list, linked directly from the source you keep citing, and obviously definitive for the last guy who had the job, but whatever you say.

EDIT: and finally, finally, here's the public job listing for the CBER [1]. It's a competitive hiring position, as part of the 21st Century Cures Act (2016) [2].

It's not a political appointment. Full stop, end of discussion.

[1] https://www.fda.gov/media/182615/download

[2] https://www.fda.gov/regulatory-information/selected-amendmen...