My point is Lukaku needs to be judged on a run of games, that's when he usually comes good. You can't judge a player on 1 game here and there. He needs to be given a proper chance in the first team, a run of 3 - 5 games and see how he does, that's the only way you'll ever know if he is ready.
Same applies for Ba.... Everyone is like "Ohhhh no just pains me if he's no.1 when Costa is injured"..... well that's an annoying attitude because Ba has been used sporadically and no wonder he can't get any kind of form.
When Costa got a run of games that's when people noticed what he was capable of, not when he was being used behind the other 1st choice strikers at Atletico the odd game here and there. You have to give these players a good run of games.
We are judging him on a run of games ... He had one at Everton and West Brom. Is he good enough to start for Chelsea based on them? Nope but he certainly has the potential