they why dont you count only installments that are to be paid this season only. Dybala 8M, Mandzukic 6-7M, Zaza 6M, and the one from last season(s) like Asamoah 3M, Morata 10M etc.
They better get themselves a quality player for that position, because if they dont, after selling Vidal, then I'm grabbing my pitchfork out of the garage.
Are you aware that every season we pay installments for players bought in previous years? It means, that we do not have to pay the whole sum for Zaza right now. Part of this payment will be paid next year for example. And the same goes for our previous acquisitions - for example Pereyra or Morata. In conclusion, our payments this season will approximately look like that:
It's (not really, I guess) surprising how the way Juve operate needs pointing out every single mercato. We make champions, always have. Now and again we bought them when we sold one or more.