Yeah, Benzema dropping is an issue, because, not counting Bale, the only players with enough pace to make moves in behind are 22 or younger and inexperienced at that. You could criticise Hazard for that and go on complaining how he's slow, will be slower and therefore a flop or overinvestment, but it's missing the point - he was never really that rapid receiver. The club knew it in advance.
Hazard and Benz are both the players who will play another guy in. And that guy needs to be Asensio, Jović, Rodrygo or Vinicius, sometimes rapid fullbacks when on overlap. Even now it's usually them who end up on the end of those.
In other words, investment will be fine if any of these guys give us a scoring return amid the wait for Mbappe. Hazard's skillset is not suited to do that. He was never going to be that. He never will be. And people need stop looking at him through a Ronaldo lens with some kind of idea in their head that he's going to score 20 out of 50 that Ronaldo used to, no chance. 15-15 type seasons are the best case scenario, but it needs to be one of the 4 above who net the goals.
Asensio is a big hope, even now, despite that shit season last year. Under Zidane he's a very different personality. Him and Rodrygo looked superb when together on RW and LW respectively. Hope we see that more often.
BTW
I love how this seemingly DISASTROUS scoring return is highlighted by people here and yet when a Benziboy scores 15 in 2 seasons there's absolutely nothing, because of all the link-up play bollocks