All of Biden's picks face steep learning curves because they are all patronage selections not having any particular expertise in their departmental fields.
I understand the Biden team is bitching because, while the Trump folks are transitioning their offices and turning over info, they aren't providing remedial training in their department's daily operations. Nor should they.
Prepare to hear one helluva lot of whining from Biden about 'lack of transition cooperation' as his administration fumbles and bumbles through its term.