Former Scotland internationals Andy Irvine and Doddie Weir have called for Matt Williams to be sacked as national coach immediately.
Williams has won one Six Nations game
The Scots are in disarray after winning just one game in two Six Nations campaigns under the Australian.
"The union should take a couple of brave pills and bring in somebody younger that has the players' confidence," Irvine told BBC Sport.
Weir added: "They need to make a change and might as well do it now."
Weir also questioned the future of Scotland's director of rugby Ian McGeechan.
Scotland finished second bottom of this year's Six Nations table following Saturday's 43-22 defeat to England.
The Scots beat just Italy, although they came close to defeating France in the opening round of matches.
Irvine conceded the Scots had shown more spirit against England than they had against Wales but still felt Williams needed to go.
"The attitude was definitely better and I thought we played an attractive style of rugby," said Irvine.
"But again some of our first-time tackling was very poor and we let England in for three or four very soft tries.
"To a certain extent, I feel sorry for Matt Williams because he does not have a good squad and, particularly against the Welsh, you have to look at some of the senior players and expect more leadership from them.
"But the rugby public have lost faith and confidence in him and I fear that some of the players have also."
And Irvine added: "I think the press are hounding him to the point where his position is almost untenable."
Irvine says Ian Paxton's success with Scotland's under-21s could make him a surprise candidate for the top job should Williams leave.
Todd Blackadder has impressed in his coaching role with Edinburgh while former Scotland international George Graham has caught the eye with The Borders.