I am not sure what people have against Lacazette. He scores goals.
Squawka says Lacazette's chance conversion rate last season was 39 per cent, which seems unreal (
link). Considering how many clear cut chances we wasted last season, if we had Lacazette performing at a similar level for us our season might've been massively different.
My main question about him in the Mourinho system is his hold up play. Lacazette is not the biggest, and Mourinho has preferred mobile target men up top throughout his career. That is not his game. He knows where the goal is though.