Mike Dodds has identified what Sunderland really need to ‘work on’ in the summer transfer window. Sunderland fell to their 20th defeat of the season yesterday, as Duncan Watmore netted the only goal of the game against his former team. It felt like a step backwards for the Black Cats though, who had picked up five clean sheets in their last six games and also headed into the clash off the back of a gutsy 1-0 win over West Brom. It was the same old at the Stadium of Light though, with Mike Dodds‘ side dominating possession but failing to create clear cut chances. Meanwhile, The Lions needed onl…