Handling a team that has been with one coach for a long time is not easy because Ivan Juric certainly has a different view or philosophy from Gesperini to implement tactics so it takes time for Ivan Juric to adapt to make the Atalanta team according to his wishes.
I think if Atalanta management expects instant change then it will not happen and if too much pressure with targets then it is likely that Ivan Juric will not be Atalanta's coach for long.
Right now there is a very interesting situation with coaches in Serie A. Gasperini has left Atalanta and Juric has taken his place which I think will weaken Atalanta especially with the loss of several players that will only add to it. Inzaghi is leaving Inter which in my opinion will also weaken the team because Inzaghi was a very good strategist and without him Inter will not be as stable. Juventus is coached by Igor Tudor but speaking of Juventus they have already lost their dominance in Serie A for a long time and I doubt that with Tudor they will be able to return to the fight for the Scudetto.
The team in the best position among all is Napoli because they are staying with Conte, the team is in good form and they are strengthening well. They have already signed De Bruyne and now are negotiating to get Sancho. So even though they were already strong enough they are still reinforcing their squad during the off season. Considering all these factors I would say that Napoli will continue to dominate in Serie A.