Ronald Koeman wants to see more from Everton's attack and striker Romelu Lukaku in the Premier League.
Everton's attack is causing manager Ronald Koeman the most questions as he called on improvement from striker Romelu Lukaku.
The Dutchman's team have fallen to seventh in the Premier League, beaten 5-0 by Chelsea in their last game before the international break.
Koeman said his attack, which has scored just five goals in their past six league games, was causing him most concern.
"Our attacking part of the team is the position is where I have the most doubt about players at the moment," he told UK newspapers ahead of hosting Swansea City on Saturday.