All those people who think Pogba made a good move for his career need to reassess the situation.
He's moving to a team that is trying to become a big club again after being a side that was fighting for Champions League football for the last 5 seasons. They have just won the league title after quite a long time. They are still trying to become a big club. Look at Juventus' recent acquisitions. Lucio, Asamoah, and Isla. Then look at their acquisitions in central midfield. They got Asamoah, and they already have Pirlo, Marchisio, Vidal, and Felipe Melo. Seeing as Juventus will often go for a 3-5-2 and possibly switch to a 4-3-3 at times, where will Pogba get his chance? Given that Juventus are still going for the title, Pogba won't get his chance until Juventus have a settled title-winning foundation to build upon. By that time, Pogba would have left for a smaller club to get first-team football.
What will likely happen with Pogba is that he will be under co-ownership with a small Serie A club/Serie B club. By the time he's established and adapted, and Juventus have a lack of depth in midfield, Pogba will be called in, that is if Conte will stay at Juve by that time.
Pogba has made a move out of an established club with a plan for the future to a club that is still building up to be a top club again. Pogba won't get many chances at such a club unless the midfield lacks depth, which won't look likely given that the midfielders in Juventus don't have many injuries.
We don't know if Juventus will go for more midfielders. By the looks of it, they might, given their lack of depth in that department. Pogba will need luck on his side to get first-team football without having much experience and the mentality of a first-team footballer.