Richmond assistant coach Ben Rutten will leave the Tigers at the end of the 2018 season to join the coaching department at Essendon.
"It's unfortunate that he will leave Richmond at the end of our season," Richmond general manager of football Neil Balme said.
"He has built great relationships with both coaches and players, and played an important role in our premiership success last year.
"We're thankful that Ben has let us know his intentions for the future, and he is focused and committed to his role at Richmond for the remainder of our season."