How much education, training and competence does one need to be a parrot? Her job is to predict what questions will be asked and to have the answers from the sources at the ready, not to know what's actually going on. If she did know, then lying and feeding the public the BS talking points would be harder as she'd know she's not being honest.
She appears to have the memory of a goldfish when talking facts, however she has the talking points and platitudes memorized verbatim.
When someone asks a relevant and direct question, one of her favorite answers is, "You'll have to ask the {FBI, IRS, DOJ, ATF, EPA, DoD ...}." No, that's HER job -- to be the spokesperson for the ENTIRE administration, and these agencies are all part of the Executive Branch. For her to refer the press to someone other than the official WH public relations secretary is not how things are supposed to work. That canned answer only gives the impression that the President has no idea what's going on with his agencies.
The press should eat her alive for that cop-out, but they accept it constantly.