That Everton forward should be harrying all the Liverpool defenders, giving them no time on the ball. He should be looking for space, shielding the ball and bringing other players into play with him - but instead, he just wanders around aimlessly as if it's a game on the local park. Calvert-Lewin was exactly the same until he went off.
These forwards need to watch Sergio in the second half versus united in the FA cup game - 0-3 down at half time with ten men - he gave a perfect performance of playing the lone striker and nearly earned us a draw.