By economists I take it you mean Corbin's advisory council including David Blanchflower Richard Murphy and Simon Wren-Lewis.
According to this article by Blanchflower it no longer exists. Blanchflower now seems unimpressed by Corbynomics and I read a recent article by Murphy where he also seemed disillusioned with Corbyn
www.theguardian.com/commentisfree/2016/aug/02/i-advised-jeremy-corbyn-economics-team-learn-fast--no-credible-plan-labour-leadership
You may feel that Corbyn would not be an embarrassment.
Many would disagree!!