Danny Grainger has left his role as Workington manager.
The former Carlisle United and Hearts player took over at the Reds back in May 2019.
He agreed a new two-year deal in February, along with assistant Steven Rudd.
Grainger explained to the club website: “I have received an offer that I did not think would come along, and it is an opportunity that myself or my family cannot turn down.
“It goes without saying that the last 18 months have been a challenge for the fans and the football club, but I leave knowing myself, my staff and the board have laid the foundations for the long-term stability and success at Workington AFC.”