Not a kneejerk comment after the Chelsea match evidenced by posts in previous threads where some of the lingering concerns with him were voiced:
e.g. Ultimately, I think Lukaku is what he is - we knew what we were getting based on the totality of his career. He's probably going to to be a Mario Gómez type player for United as far as the best-case scenario is concerned in terms of his production.
That isn't meant to disparage Lukaku either because Gómez scored 99 goals in his last 3 seasons at Bayern - which was an exceptional statistical target for any striker, particularly the 2012/12 and 2012/13 seasons:
In spite of the goals, Gómez faced criticism because he never quite had or developed the all-round play or compensatory workrate needed to be the leading center forward of an elite club. And it's unlikely that Lukaku is going to show great improvement in those departments at this stage of his career (24½ isn't exactly young - especially for someone who has played 330 club games and 60 national team games). Reckon over the next 2-4 years (timeline is dependent on the evolution of the team - particularly in the Champions League), it'll be a matter of either acquiring or developing (Rashford/Martial) better all-round fits and alternatives - like Bayern did with Mandzukić and Lewandowski in quick succession. Just hope that the decision-makers at United are proactive enough to make the admittedly harsh decision when the time is right because while he's
good in terms of the production over the course of a season (especially when he goes on a purple patch) - he's not
very good from a broader perspective, and doesn't have the skillset to become very good or a difference maker at the position.