Gareth Jenkins says he realised it was time to give up coaching when he went for other jobs following his sacking as Wales manager last year.
Jenkins, 56, was unveiled as head of regional development and recruitment with the Llanelli Scarlets on Thursday.
And he said: "I went to a couple of interviews in other places but that excitement, adrenaline and that thing you have to have wasn't there.
"I realised then that my time in the tracksuit wasn't any longer."
This newly created backroom role is Jenkins' first job in rugby since being sacked by the Welsh Rugby Union after the World Cup exit to Fiji in September.
And Jenkins revealed the heartache he went through after being shown the door.
"It wasn't the best thing that has happened to me," he said.
"It was a very difficult decision I had to deal with and the way it happened.
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