Dominic McKay will start working as Celtic’s new general manager about three months ahead of schedule.
McKay was due to become the club’s new CEO on July 1 after Peter Lawwell left, but his arrival from SRU was brought forward.
Outgoing chief executive Lawwell will remain in his role to help with the transition at Parkhead, where a new manager is sought, with former Bournemouth boss Eddie Howe the frontrunner to replace Neil Lennon.
A statement from the SRU said: “Following the announcement published on January 29, Scottish Rugby can confirm that Guinness Pro14 Director of Operations and President Dom McKay will leave the organization on Friday April 16 after a successful transfer of his duties. and responsibilities.
“Dom is leaving for Celtic FC with best wishes from Scottish Rugby for this exciting new chapter in his career.”
A Celtic statement added: “Peter Lawwell will continue in his role as CEO and board member until June 30. Dom will join the club from April 19, working with Peter and the management team to ensure a transition into sweetness, until Dom takes over as CEO and board member on July 1. “
McKay joins Celtic amid a period of big changes at the club with Lennon leaving, football operations chief Nick Hammond announcing his resignation last week, and captain Scott Brown also leaving this summer, with several players from the first team that should follow.
The past year has been problematic for Celtic, with fans protesting outside Parkhead in December and the club losing the Scottish Premier League title to fierce rivals Rangers while chasing a record 10th consecutive crown.
They have also come under heavy criticism for traveling to Dubai for a training camp during the coronavirus pandemic.
In January, McKay said: “Joining Celtic FC as General Manager is a unique opportunity and a new challenge that I am very happy to take on later this year. I have been incredibly impressed with the vision and the people at within the club and I look forward to working with them.
“I can honestly say that I have had the best 13 years of my life in Scottish Rugby and have made lifelong friendships through the sport and its many unions, partners, broadcasters and sponsors.
“I am incredibly proud of the progress the organization has made in recent years and I hope I have contributed to the strong foundations in place which I believe will serve Scottish rugby well in the future.”