I disagree with Motta-Sottil comparison. Motta was first hired by Spezia in 2021/22 where he did a decent job and saved them comfortably. Then he replaced Sinisa at Bologna who had mostly been a side to fight to avoid relegation. Motta has made a steady progress there, turning Bologna into a top half table team. He had a rough start with 3 losses (Empoli, Juventus, Napoli) and 1 draw (Sampdoria) in the first 4 matches but then he had 9 wins, 3 draws and 5 losses in the next 17 league games. In the same period Limone has 10 wins, 2 draws and 5 losses.
On the other hand, Sottil has mostly worked in Serie B and this is his first season in Serie A. He had an excellent start in the season (6 wins, 3 draws, 1 loss) but Udinese have won just 3 games since beating Verona in October 3rd. In fact his win against Milan few days ago was his first home win since beating Inter in September!
Two different situations.
As for Conte, even if we put finances aside we would need big changes in the squad to accommodate Conte ball. And i am not even referring to defence where we would need to make at least 2 signings no matter who we hire. Our current midfield is actually far from Conte demands. Mkhi would be of no use to Conte, i have my doubts if he would be happy with regista Chala, he would certainly demand a Kessie type of player for LCM, he would probably prefer Dimarco as lcb and he would ask for a new rwb over Dumfries. So we're basically talking about a squad overhaul. Not worth it.