Manchester United are once again struggling, with goals being the biggest problem for Erik ten Hag. Despite putting seven goals past Barnsley, goalscoring has been an issue this season for Manchester United – with just five goals in five Premier League games. However, goal-scoring issues are not through a lack of trying as Erik ten Hag has watched his side miss more big chances than anyone in the Premier League. Joshua Zirkzee has been the first-choice striker this campaign, although he has bagged only one goal this season as the goal-scoring burden has been placed on the wingers with Alejandr…