Early games in the Eastern time zones can tend to put teams from the Pacific time zone at a bit of a disadvantage. The bodily clock is a real thing and it can be enough to throw a team off their game enough to make a significant difference.
There is also simply the matter of travel time to and from games in the East.
The Raiders have three such games this season. Two of those game are back-to-back, and, as it turns out, that was by design…by the Raiders, not the NFL.