To be honest I don't understand how people are conclusively making sweeping judgements about Schneiderlin being better, more physical and more technical than Xhaka without watching the latter on a weekly basis for Monchengladbach. Nothing against Schneiderlin mind, he is a very good player and would be a quality signing and maybe even edges Xhaka right now. But Xhaka is almost as good defensively with more room for improvement under Van Gaal given his age profile, is more physical in his style of play and is technically, one of the best young midfielders around aside from being one of the top midfielders in the Bundesliga this season.
When you combine that with the fact that he is about 3 year younger than Schneriderlin and far removed from his prime and that Van Gaal will make him much more consistent it makes his case even more compelling in terms of projecting the final product. United as a club needs to be less inclusive and cast a wider net for potential transfer targets, rather than prioritizing Premier League experience. Paradoxically, if Xhaka transfers to some other club and comes good on his vast promise, we will have people turning around and critiquing the club for not jumping on the opportunity to sign a great young talent for about €20-25 million when we had the chance.