If you class Keane as one of the best then I'd class Maguire as one of the best too. As I keep repeating, he outperformed Keane last season and take away his sub appearances and his rating was 7.21, again higher than Keane. You're grossly underrating him and you'll be proven wrong next season I'm sure, just as I was with Kane when I thought he was crap.
I'm mentioning those players because they're the calibre you need to score 25 goals a season in the PL and even they would struggle. It's hard enough scoring 10-15 let alone 25. So irrespective of their individual styles, you need someone of that ability to replace Lukaku.
Worthington is your Spanish scout, he's Frankie Wortho's brother and was responsible for Hernandez who was crap and he was hell keen on Perez who didn't set the world alight at Arsenal. Carles Gil was another he recommended and a few others I'm glad we never pursued. You've just taken our Scandinavian scout responsible for Amartey, who was supposed to be like Ndidi but wasn't. Welcome to him too.