You did give one example, although it could be argued that a single example only demonstrates that the single example works. There are plenty of other examples in this situation, and you list a bunch in the next paragraph, but I'm referring specifically to your original statement that it isn't your job to provide examples, when making a point it should be backed up with some kind of evidence in order for it to have credibility.
I agree that we've been left behind in terms of modernising our talent identification and recruitment, but it's important to keep in mind that none of the clubs you've provided as examples rely on a single person, it's about the entire department, smart use of data, and succession planning.
The enriching of his agency I presume is a dig at Ten Hag, but we should never have been relying on his transfer targets in the first place. Fortunately, it looks like we aren't relying on managers to be scouts anymore. As for his veto, while it's odd if it's contractual, in practice I'm sure plenty of managers have vetoes, naming 5 would be simple. You aren't going to give the likes of Pep, Simeone, Inzaghi, De Zerbi, or even Conte, players that they don't want. Managers should absolutely have a say in who gets recruited, but it shouldn't be the final word, and nor should they be relied upon for identifying targets.
I think scepticism is fair, even sensible really, but it has to be accepted that there will be growing pains with the new structure, as we've been trying to assemble it at breakneck speed. Ashworth was a casualty of that, as it was one too many chefs. This window is looking promising, and while Wilcox hasn't been a DoF before, he's supported by the very experienced Vivell as a Director of Recruitment, so there's definitely experience in our burgeoning team.