Jeremy Corbyn’s former Scotland adviser has urged Keir Starmer not to turn Labour into a Better Together “tribute act”.Tommy Kane said a revival of the Scottish party is based on winning votes back from the SNP.In a coded criticism of Starmer’s approach on coronavirus, Kane also said the focus should be on PPE for workers, rather than an exit strategy.However, a Labour source hit back: “Keir’s commanding performance at PMQs shows the UK finally has a credible opposition.”Starmer is being urged to close the chapter on the Corbyn era, which was marked by two general election defeats to the Tories.Recent changes in Scottish Labour, led by pro-Corbyn Richard Leonard, have also signalled a shift away from the overt left-wing approach of the