Frank Hadden has stepped down as head coach of the Scotland rugby side with immediate effect.
Hadden was given the Scotland job in September 2005 and enjoyed success in his first Six Nations, with three victories.
However, the 2007 and 2008 campaigns were disappointing, yielding just one victory from five outings each time.
And he failed to meet the SRU's minimum target of two Six Nations victories per season in last season's campaign.
SRU chief executive Gordon McKie says it was agreed that a change in head coach was required to allow them to plan for the 2011 World Cup in New Zealand.
Scotland have finished in the bottom two of the Six Nations five times in the last six years, which is the same record as Italy.