Atalanta is beginning to degrade out of the team it used to be and this is majorly due to the way they built the game initially around Ademola Lookman the previous year. This is not to justify their dwindling stance but to urge the team to look inwardly, in as much as Ademola Lookman could not secure a move, he should be integrated into the team while coaching up his replacement. The team misunderstanding is also influencing his output in this ongoing international game. You can tell his unsettled heart from his countenance during the break. If the team reintegrate him, it would be more profitable for them when the transfer window opens in January. But leaving him out of the games would cause both economic waste and self degradation.
While Lookman situation is definitely one of the reasons, it is also obvious that losing Gasperini made them be bad as well, which is the reason why we are seeing this situation. If we end up seeing this type of deal, then we are not going to end up with that much great returns, it's just not that easy.
Gasperini was a big part of this club and the reason why they were doing great, and not only that but he was literally the manager for a decade or so, and that means he built a squad for himself. So no matter who you get, no matter how great or terrible the manager might be, anyone who follows a manager like that, will have hard time adjusting the team to something new. Even the kitman would be ready for the old ways, so it's not easy.