FRANK HADDEN'S future as Scotland head coach will not be decided until the end of April, Scottish Rugby Union chief executive Gordon McKie has revealed.

Defeat to England on Saturday would mean Hadden will have failed to meet the SRU's minimum target of two RBS 6 Nations victories per season for the second straight year.

But McKie insists a 40% success rate is only one factor the SRU will consider when they come to review the championship and decide whether Hadden should be sacked.

"Speculation that this is Frank's last game is somewhat premature," McKie said. "I will carry out a review with coaches, selected players and others on the periphery of the national team and reach our conclusion and share it with the board.

"We review the performance of the national team after every series be it World Cup, autumn Tests or Six Nations. It can take anywhere between two and four weeks; I suspect Frank will want a break after the Six Nations."

McKie insisted he had no regrets at setting a minimum victory target when the SRU's five-year strategic plan was announced in 2007.

He added: "We will take into account all factors including how unlucky were we, frustration of dropping a ball and losing the game. How competitive were we? World rankings. Do we believe the future is rosy?"

On Scotland's latest displays, including Saturday's 22-15 defeat to Ireland at Murrayfield, McKie said: "Without making excuses, I think we have been unlucky. Against Ireland, we lost one line-out and we lose the game. Overall, the performance against Ireland was a good one.

"If we win at Twickenham, that will be the first time we have won in 26 years which would be a good end."