Actually there is no need for something similar when it comes to Juventus. Their being competitive for the Serie A title next time would be good enough for the board. 
Even Xabi Alonso wouldn't be able to repeat the same exact season in my opinion. Because the thing he achieved was unique. This must be the best ever start to a new manager career. Anyways, Motta will need to make significant changes for sure. Transfers should be made carefully by focusing on the weaknesses the most. Midfield should be the most urgent place like I said before. After that we will find out how good Motta will do with a bigger team.
I do agree with that, Xabi can't go 50+ unbeaten, hell he may not even win the league if you think about it, maybe he will or maybe he won't. Juventus will do fine, I think we are going to see them play a lot more quick, I think that system will work wonderful for Juventus, they are going to be very pace oriented team this season and they do have the talent for it as well, which should be fine. Even Xabi Alonso wouldn't be able to repeat the same exact season in my opinion. Because the thing he achieved was unique. This must be the best ever start to a new manager career. Anyways, Motta will need to make significant changes for sure. Transfers should be made carefully by focusing on the weaknesses the most. Midfield should be the most urgent place like I said before. After that we will find out how good Motta will do with a bigger team.
I believe that the best thing to do right now would be just focusing on how to get better results, and for that to mean something, we should be considering how to get better results. We will need to do better in the end if we know what we are doing, and for that to actually worth their time, Juventus should get some young fast people too.