Sean Holley, the former Ospreys head coach, has been appointed to the Scarlets' backroom staff for the 2013 RBS 6 Nations.
Holley, who left the Ospreys almost 12 months ago after being involved with the region since their inception in 2003, will replace attack coach Mark Jones who will join Rob Howley's Wales coaching team for the tournament.
"I'm looking forward to working with Simon (Easterby) and his team - they are a hard-working and committed coaching team with clear goals, real ambition and a strong set of values," said 42-year-old Holley.
"It's a close-knit group at Parc y Scarlets.
"As a team, the Scarlets are destined to achieve success with the number of exciting players they have with real talent and passion for the shirt they wear.
"They have worked hard to put themselves in a strong position in the PRO12 and they need to cement that in coming weeks.
"It will be a great environment to experience with an excellent stadium and rugby facilities and I hope to add real value to the drive and ambition at Parc y Scarlets for the time I am here."
