P5 teams are making a conscious effort to bolster their job-conference schedule by signing more series with other power conference teams. By dictate, the BIG and Big 12 play 10 P5 games each year; the ACC and SEC play 9. The PAC 12 commissioner wants the members to play 10.
The availability of series, with the P5, is shrinking for the G5. With the reduced number of games, there will be fewer opportunities for upsets.
The G5 is trending downward add a relevant group.