Puyol nor Dani can cross a ball. We need a back-up for Dani that is excellent with crosses. Is Van Der Wiel? Then yes.
There is a reason why when our team defense was in shambles Pep choose Jeffren over the youngsters. There's also a reason why Pep wants cover for Dani Alves. Youth just aren't at the right level yet
Van der Wiel will be Barça material within 3 years, I think, but for now I think having Puyol will be enough to cover for Alves. Alves plays 98 per cent of our matches, so we don't need a real replacement. If Alves would get injured, it's another story, though.