I'm not saying they aren't good players, just that had those clubs moved for them we'd have never got them, moreover with players like Xhaka who are at smaller clubs, generally if they are hot property a number of clubs are chasing them, I'm just challenging your ascertion that Xhaka was one of the hottest properties in Germany, if he had been other big clubs would have moved for him as well, they didn't. The reason clubs didn't move for Ozil and Sanchez is because, certainly in the case of Sanchez he hadn't been a big success at Barca. Ozil was different, perhaps the fee and the fact those clubs weren't specifically looking for players in his position so late in the window let us in.
We won't beat Man U, Man City or Chelsea to a player either.
Not even convinced we'd beat Juve, Athletico these days either, but thats of our own making.