I would think it more likely that Wellens and Baroncini do a heavy cobbled classics campaign and will be past their best by LBL.
So, Sivakov and Covi then? With Christen, Novak, Narvaez and Herregodts. Plus one final rider, who could be a number of different riders for the last selection. I think that composition makes the most sense.
Wellens has also managed to race 10 LBLs. He is very all-round and hasnt done a "heavy" cobbles classics campaign many times, or at all, but can still get good results there.
Baroncini is all-round too. He can do both. Got room to still improve.
I find it more likely that Morgado, Pollit, Vermeersch and so on are the leaders for the cobbles. With maybe guys like Wellens and Baroncini doing some, but not all.