Former England head coach Andy Robinson will assist Frank Hadden in Scotland's summer tour of Argentina.
The Edinburgh coach and Glasgow counterpart Sean Lineen have been brought in after the SRU conducted a review of Scotland's disappointing Six Nations campaign.
Robinson and former Scotland international Lineen will continue with their club roles and the management team will be reviewed after the two Tests against the Pumas.
The restructuring has sidelined George Graham and Alan Tait, who assisted head coach Hadden in the World Cup and the Six Nations.
Robinson and Lineen already had a role in the national set-up in their capacity as Scotland A coaches.
They were also utilised in what Hadden termed an "observational and feedback capacity" during the week before Scotland beat England at Murrayfield — their only victory in this year's Six Nations campaign.
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