Murphy, a Leading Teams founder and highly credentialed consultant who worked with the Cats periodically from the first of their three premiership years until the end of last season, started at Punt Road last week.
He will work with the club's players and coaches as a part-time consultant and will assist in the assembly of the 2015 leadership group.
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"He's got a lot of experience and a good track record, not only at Geelong," Richmond football manager Dan Richardson told AFL.com.au on Tuesday.
"With the credibility and success from a club like Geelong, it appealed to us to have someone with that level of credibility."
Murphy has also worked with Super 15 team the Wellington Hurricanes, the New Zealand Breakers basketball team and the Australian rowing team, as well as a range of UK sporting organisations including West Ham United and the Great Britain Olympic team.
Although he was a founding director of leadership organisation Leading Teams, he isn't bringing in that model and will consult independently.
Previously, the Tigers have turned to internal employees to manage the leadership program, with former club captain Wayne Campbell involved in it before he became the AFL's umpiring director late last year.
Richardson said the Tigers were keen to try something new by installing an external resource with expertise in the leadership field.
"Probably (in the) early to middle part of this year we identified that leadership development and the development of our people and ability to deal with big games and occasions and embrace that ... is an important part of our ongoing development as a club," Richardson said.
"We thought it would be a good move to go down the path of bringing in an external consultant and a fresh set of eyes and someone to just continue to develop our leadership capabilities of our coaches and players.
"There will be a bit to do with the team-based performance side of things with regards to dealing with pressure, staying calm in big occasions, all that sort of stuff."
There is no set timeline on the appointment of next year's leadership group but Trent Cotchin is expected to continue as captain.
Cotchin's leadership was a hot topic this year with the young skipper coming under fire at times for not being demonstrative enough.
But he stood up in the second half of the season as the Tigers charged to an unlikely finals berth and made notable in-roads in the leadership field.
"We think the group came a long way this year but like anything, there's still room for improvement," Richardson said.
Murphy left Geelong at the end of the 2014 season.
