Tottenham boss Ange Postecoglou will have to solve the problem of defending set-pieces if his team want to make a push for the top four this season. Spurs have impressed with their new style of play, with some indication that they could land Champions League football for next campaign. With the Lilywhites sitting in fifth, just two points behind Aston Villa in fourth, the race is on. However, there have been a few stumbles along the way, with the latest coming against Everton at Goodison Park.Richarlison‘s hot streak in front of goal continued with a brace, but goals from Jack Harrison and Jar…