While I worry that Adli will need time, perhaps a Tonali-like gap year, I don't think it's impossible he hits the ground running. If we've won (and dominated) big Serie A matches with Brahim and Krunic, I don't think Adli will be a problem. In the CL? While the boys froze (initially) at Liverpool, against Atletico, they came out roaring. Each game in our group was a quarter-final level, and I think they did well for their first year.
Plus, Renato, if he does come, will add a huge dimension and flexibility to our game. I think we have shown 433 looks already, while I might not rate Brahim I am much more bullish on Adli. I think he's going to surprise people.
Even if we had just Adli there, with Brahim and Krunic to back him up, not even counting Renato, having an actual RW would fundamentally change the way teams play against us and the space would open up for us. RW has to be priority number 1, without question.