Everton’s marked improvement under Sean Dyche is no greater exemplified than through Vitaliy Mykolenko’s progression. The Ukraine international, signed from Dynamo Kyiv as one of Rafael Benitez’s final acts as manager before being dismissed, was often marred by this link to one of the worst managers in the club’s history. At first, many were justifiably furious with how Lucas Digne had been forced out, only to be replaced by this unknown left-back who could not cross, run with the ball or seemingly defend at first. But that has all changed under Dyche, and now the full-back is an intelligent a…