For the first time in his Sunderland tenure, there were rumblings of discontent heading the way of Regis le Bris as the Black Cats threw away a 2-0 lead to draw with Coventry City. The Frenchman had already frustrated some fans with his team selection for Sunderland’s 0-0 draw at Preston three days earlier – rotating an in-form frontline as the Wearsiders drew a second blank in succession – and Le Bris found himself with some explaining to do again on Saturday afternoon. Stunning goals from Wilson Isidor and Dennis Cirkin put Sunderland in control against a Coventry City side still reeling fro…