I'll say one thing about this guy - I get the feeling he was hired more because Levy likes the way he works than for any intrinsic talent at building a team. Freely admit it's just a hunch on my end, but the signs are there, imo.
There was a moment under Paratici where I felt we were breaking the mould in terms of the way we operated and the players we signed. They were either unexpected deals we didn't typically do (Kulusevski and Bentancur from Juve), underrated players from leagues we didn't typically buy from (Vicario, Udogie) or actually attempts at highly rated signings with a lot of competition (Romero, Porro). In other words, we shopped in markets we didn't typically shop in.
We also changed the way we approached and convinced players, were much more media-friendly with our transfers, and generally worked in ways the top clubs work when making signings.
All that changed this summer. Suddenly we were back to taking months and months to make major signings, signing mostly low-wage, high-potential players from familiar markets in the British Isles (with the accompanying price tags), working in 'silence' and swiftly moving on when facing competition for players. In other words, we went back to acting in the way we know, from historical experience, Levy likes to act. Even if it's 20 years out of date in terms of how clubs act these days.
Now, I am making absolutely no predictions for how Lange's signings will turn out - Odobert, Gray, Solanke. May turn out great, may turn out crap, I don't have enough info to judge yet, so I won't.
But observing the way he does things, he seems more aligned to what Levy wants than the way Paratici worked. And personally, I think that's a very bad thing. But, early days, and maybe there's a hidden side to this bloke we haven't seen yet.