Out of the two files that come up when you search "james 8. corney" on the DOJ's website, one of them is sent by Tashina Guahar.
https://www.justice.gov/oip/foia-library/foia-processed/general_topics/fusion_gps_11_20_19_interim/download
Looks like Barr let her go last month:
https://iotwreport.com/doj-fisa-official-quietly-removed-after-ig-draft-report-sent-to-bill-barr/