It may have been a bruising start to the season for Hearts, but former player Andy Halliday has seen "really positive signs" for new head coach Wouter Vrancken. Opening with four successive defeats, the much-changed Edinburgh side registered a first win on Sunday, demolishing Dundee United 4-0 at Tynecastle. Halliday gives his old team no chance of turning round a 6-1 deficit against Benfica in Europa League qualifying on Thursday, but does think there are grounds for optimism for the remainder of the campaign.