I was able to answer my own question by reading Ray Agnew's profile in the 2016 and 2020 Los Angeles Rams Media guides. The 2020 Media guide states that 2020 was Ray Agnew's 23rd year with the Rams (so... that 17 years I thought was a gap where he did nothing... he was actually in the Rams employ. Agnew has been with the Rams ever since he retired as a player!). The 2020 Media guide also says:
Ray Agnew is entering his fourth season as director of pro personnel. The 2020 season marks Agnew's 14th season as a member of the Rams scouting staff, having previously served as the assistant director of pro personnel. The 2016 guide states that prior to joining the personnel department, Ray served seven years as Director of Player Development/Team pastor with the Rams. He served as a spiritual mentor for players and assisted them with life issues.