There is no way to defend Amauri.
Dunno if you noticed but for the last months I'm not attacking any of our players individually. Simply because in these awful times when the whole team plays like a bunch of Tiagos, I can't attack one player without attacking the other 10 Juve players on the pitch.
That's why I stay out of these arguments regarding Amauri (or Melo, Grosso, Del Piero, Grygera etc).
Anyway, one can argue if Amauri getting most of the critics is deserved or not, but no-one can seriously defend the guy as some are doing. For one reason or another, he's been shockingly awful.