Everton boss David Moyes admits he still has doubts about his squad's depth.
Moyes has seen is team win their opening two games of the season.
"I don't feel it's the strongest squad in my time at Everton because we haven't really got any injuries at present so I've got a little bit of cover in some places, but the numbers are down," Moyes said.
"But the flexibility of the squad gives me a little bit of hope. I can play Naismith and Fellaini and [Leon] Osman in a few positions, [Kevin] Mirallas too, so we can cover things, but if we lost any numbers we'd be struggling. I'd like to add to the squad if I can."