Yes. So many of her replies to Nathan's questions were "I don't know" or "I don't remember" or "I don't understand" for questions that were very straightforward.

At her level of responsibility she'd better know. Whatever the case, she's either deceitful or incompetent. Neither answer is flattering or acceptable.

It's manufactured incompetence. You can see it a lot in companies who use a lot of subcontractors.

Deceitful vs delusional or incompetent matters for your legal defense, your parole hearing etc