I was reading another site and someone mentioned that Luiz needs a strong DM next to him. Not sure why that would be the case since he usually played with Tielemans, who I suppose would be in a similar mold of a player to Fagioli. So perhaps those two together would work, along with Koop in front of them.
Hopefully the plan is that Luiz would be the Rabiot replacement and not secondary option to Koopmeiners.
He needs DM alongside him. Aston Villa with Kamara before Feb is different with Aston Villa without him. After Kamara injury, Aston Villa record in Premier League was 6 Wins - 4 Draws - 4 Loses while conceding 29 goals in 14 matches which means 2 goals per match.
They also lost to Chelsea 3-1 in FA Cup. Won 2-1 and lost 2-1 against Lille in Europa League before eliminated by Olympiakos losing both matches 0-2 and 2-4.
Some of their fans also slash Luiz for his bad performance in their last several matches of 2023/2024 season. And their win against Arsenal which made Arsenal lost their Premier League title was when Douglas Luiz on the bench.
I believe there also plan within Villa other than FFP or PSR rule. They already have Tielemans that have quite same characteristic as CM. While Emery plays Tielemans sometimes as SS behind Watkins when he played both Luiz and Tielemans. With McKennie he can get versatile player that can suit Emery high pressing game, can play as mobile CM that support Watkins or defend, and can also play as Kamara cover as mobile DM. This means Luiz is expendable
Iling Jr. also provide them with u21 English player that can play as LB or LM.