Barking at the wrong tree.
Going forward Bentancur is our first pick to #6 ; Sarr first at #8 and Madders first at #10.
Everything that Bissouma can do, Bentancur can do better.
On #8 Sarr and Bentancur overall quality is close, though Benta would offer more direct goal threat.
On #10 there is no dispute - Madders all the way.
In other 2 positions it bails down to simple formula - difference between quality between Bentancur vs Bissouma on #6 is bigger than difference in quality between Sarr and Bentancur on #6.
Bissouma had all the chances to establish himself as one of the first names on the teamsheet when Benta was injured and also Sarr had to miss some games. Started off well, but totally shat the bed and is now miles (if not tens of miles) behind in the competition.
Bentancur is nowhere as pressure resistant as Bissouma, and he isn't as good defensively either. he also lacks Bissouma's mobility and athleticism.
The qualities for Ange's single pivot 6 suit Bissouma better than Bentancur.
First ten games of the season he was the best midfielder in the league. He got sent off, had a couple of ok games (a couple where teams put a MOTM marker on him like MGW at Forest) then a very harsh sending off (two similar have both been rescinded) which cost him 4 games.
Bentancur has never put any performances that have hit the all round qualities that Bissouma's did the start of this season.