At this point in the offseason, all we can do is speculate as to how good or bad a team will be during the regular season. The draft is over, free agency has pretty much dried up and the biggest trades have (more than likely) already happened.
To do this, the model uses various metrics and assigns a projection to each player to show their impact on a single game. Of course, positional value is quite important, which means, for example, that quarterback Josh Allen is worth a lot more to his team than running back Bijan Robinson, even though both sit atop their respective positions.
Although I didn't love their draft (and they couldn't overtake the Seahawks last year), I think the Rams have the best roster in football. It starts with the quarterback, of course, and Matthew Stafford is still playing at an elite level despite nearing retirement. The Rams also have the NFL's best receivers room, led by Puka Nacua, plus a top-five interior offensive line, defensive line and cornerbacks room.