The Division of DOD that I was involved with from 1996 through 2006 made an attempt to implement a variation of the 360 evaluation system in 2002.
It failed rather loudly in 2005, suspect for several reasons, at least in my opinion…
1. Major mission change in in late 2004 which dramatically affected job descriptions not to mention number of staff.
2. Apparent unwillingness to invest in the resources(primarily training for all,) to insure an reasonable implementation in a timely manner.
3. Apparent unwillingness of most to accept the feedback provided.
4. Unwillingness of the organization to invest the resources to provide training that was identified by the evaluation process.
The implementation process, IMO, was generally flawed because of the apparent lack of any meaningful support, other than some level of lip service, on a mandate from the director.