If we lose Marotta, we would not be starting all over again. Especially if Paratici is staying in the building.
Conte and Agnelli are the key players here. Agnelli has brought so much passion and stability to the organization, he's made some key decisions, and I think his contribution is often overlooked by much of the fan base (especially those that are so bitter about the way Ale's situation went down). I think Marotta has done a pretty good job, considering the learning curb that exists when one jumps from Samp to Juve, but he's far from irreplaceable, IMO.
Anyone who bids against himself for Jorge Martinez, and buys him @ 12M Euro to begin a mercato - with the design of playing him at LM in a flat 4, when the player so clearly needs to be in and around the box due to his running 'impairment' - well, that person can very likely be replaced.
In all seriousness, what many others are often missing on this forum, is that all of our personnel decisions are taken collectively. There is chemistry amongst our upper management, they have demonstrated that they work well together, that they like each other, so why would we change things at this point?
I think we're going to be happy with our Mercato this summer, Llorente is a nice start.