New hires tend to be given performance reviews after 1, 2, 3, 6, and 12 months with the company. You provide feedback on how you feel they are performing and adapting to the new culture, and they provide their perspective on the same. If done correctly, it should be beneficial to both sides.
How many reviews are you having with HR after the candidate they provided gets hired? Did they find a good fit? Did they get someone who gels with the rest of the staff? Is there anything they should have seen, but didn’t, that would have been important to the hiring decision?
If HR is to be a valuable resource in attracting top-shelf talent, they need feedback on their performance and to be held accountable for their continued improvement.