It was a quality hire that just didn't pan out.
As long as he handles getting rid of him appropriately and makes another qualit hire, he is fine.
Does the HR guy at a company get fired every time someone at the company gets fired? No.
If there is a trend or if the HR guy missed something in the vetting process, then it's a different story. That's not the case here, as athletics as a whole are doing very well, despite one quality hire not going as planned/desired.