I believe None of it.
1/ There had been absolutely Zero chance of Joe Biden voluntarily resign between Nov 5, 2024 and Jan 20, 2025 except physically collapsed or died.
2/ Harris team including this communication staff had never been smart. Even from Day 1 of Harris campaign, they did not understand the urgency to separate Harris and Biden --- blame Biden for all ills and allow Harris to set a new course.
Pivotal move and changing course at certain moment is an essential in politics, she did not understand at all.