I think Auba need trust and happiness to perform. He is still one of the top strikers in the world, that much is clear.
Probably one of the signing of the decade if he continues this form. Barcelona is receiving money for a top player scoring week in week out for them till July, let alone just a free transfer. As of now it suits all parties and I am happy for him, but we also only have ourselves to blame for killing his value totally.