Everton’s Ronald Koeman cannot avoid persistent Ross Barkley quandary

The Everton manager is reluctant to discuss his midfielder but concedes he is unsure if the 23-year-old will ever become the player many hoped he wouldRonald Koeman rolled his eyes when the subject cropped up but Everton’s performance in the Merseyside derby on Monday ensured there was no avoiding a repeat of the question. Namely, will the potential of Ross Barkley morph into the consistent performer David Moyes and Roberto Martínez believed he could be? “I am not sure,”