I suspect there was a garble in here, HHS's CMS was the "quarterback" (senior vice president of CGI Cheryl Campbell used that word in her prepared testimony), specifically they took on the role of integrator and integration testing. Except that CGI Federal has testified by letter (<a href="https://news.ycombinator.com/item?id=6606243" rel="nofollow">https://news.ycombinator.com/item?id=6606243</a>) that the White House was thoroughly involved.