The Toolstation Western Football League
Published 8th June 2012
The full-back, who made more than 300 appearances for Barnstaple, will continue to play while acting as number two to Ross Middleton, Ilfracombe's new player-manager.
Darch is understood to have been interested in the vacancy at Marlborough Park after Barry Yeo stepped down at the end of the Western League season.
He missed out on the top job to Middleton but the midfielder moved quickly to bring him in as an assistant who he expects to be much more than a yes man.
Middleton said: "I have known Darchy for a long time and played with him at Ilfracombe and Barnstaple.
"He knows the league well and is experienced.
"He is not just going to say yes to me, he is going to have his own opinions."
Darch, who also played for Bideford and Torrington, joined Barnstaple from Ilfracombe in 2007.
In Barum's recent turbulent seasons, Darch was one of few fixtures on the teamsheet and he often wore the captain's armband.
As well as having Darch by his side, Middleton will be tapping into the knowledge of his former boss.
Yeo announced in April that he was intending to quit the job he had held since 2007. He is expected to be a regular in the Marlborough Park crowd next season and Middleton will be grateful for his advice.
"Yeoy has been brilliant," said Middleton.
"He is a good mate anyway and has been very supportive.
"He said he is keen to come and watch games and support Combe as well as going to watch players for me.
"If he can, it will be good to have another set of eyes watching, especially if I am playing games."