I don't care about an outstanding World Cup. We picked up Paulinho based on his Confederations Cup showing, which everyone will agree, was very impressive. We picked up every one of those players you mentioned based on a seasons worth (or more) of performance. Sample size means a lot when it comes to being able to rate someone as a player. We've had plenty of time to see Paulinho and comparatively little to see everyone else you mentioned, with maybe the exception being Soldado. "On form" can be used quite incorrectly when it comes to a player like Paulinho. Everyone wants to come along and say that if he was "on form" he'd be doing much better. Unfortunately, I think that he HAS been on form. We picked him up based on an above average performance. I believe he has a place in the EPL, but not with Spurs.
I know I'm in the minority on this, but I think that the period when our CB's were Daws and Chiriches we were better defensively. Maybe it's because we were playing slightly easier sides, maybe they clicked a little bit better. Not sure. I think that Chiriches gets shit on when you could easily place the blame elsewhere.