as a Chelsea fan, seeing all these debates on where he should play, its all too relatable, now Arsenal fans are doing it. in my personal opinion, he will not do very well regardless of playing position in this league. This league is too fast, too physical for him. He was good at Bayer because of the characteristics of that league, you want to see the best Havertz send him back to Germany. Chelsea played him in every possible attacking position and he was unconvincing in all of them, hence the constant debate.