These are our annual Pac-12 triplet rankings. We've selected a trio of skill players from each team in the conference.

The rules: Each player comes from a different position group, so the offensive version of this series features a quarterback, a running back, and a wide receiver. Each program's troika is ranked against the others in the Pac-12, and we'll be unveiling and writing about each in reverse-countdown order. Remember that this is not an all-inclusive offensive ranking, but rather only one of each team's triplets.

Note: For teams that haven't selected a starter at the quarterback position, you'll notice that we've kept things open-ended with who's competing for the starting job.

We continue our offensive rankings with No. 4 Washington State.

QB Luke Falk: In 2016, only Oklahoma's Baker Mayfield completed a higher percentage of passes than Falk, who finished with a 70-percent completion rate. Talk to Mike Leach, and he's confident Wazzu has the best quarterback in the Pac-12 -- at least in terms of running his Air Raid system. Falk's 4,468 passing yards last season led the league. The big challenge, discussed below, lies in replacing Falk's two top receivers.

RB James Williams/Jamal Morrow/Gerard Wicks: We're bending the rules and picking more than one player here, because this is a true three-headed monster. The Cougars divvied up responsibility evenly among Williams (102 carries), Morrow (90 carries), and Wicks (88 carries) last season. Williams led the way with 584 yards. Morrow was most efficient, leading the way at 6.4 yards per carry. Wicks, the biggest body at 227 pounds, enjoyed the most goal-line opportunities and scored 11 touchdowns. Wazzu has implemented an effective mix-and-match system in the backfield, and it's paid off in terms of offensive balance. The team's rushing total has increased by more than 500 yards in each of the past two seasons, alleviating pressure from Falk and the passing game.

WR Tavares Martin Jr.: Every season in the Falk era has seen Washington State successfully replace at least one primary receiver. In 2015, the Cougars adapted to life after Isiah Myers, and in 2016 they managed to carry on without Dom Williams. Now comes the biggest challenge, as both fixtures Gabe Marks (team-best 89 catches last year) and River Cracraft -- a sure bet for at least 50 catches per season -- are gone.

The 6-foot-1, 185-pound Martin is Wazzu's leading returner. He's coming off a breakout 64-catch campaign. Falk, a big Tom Brady fan, has developed a reputation of making receivers around him as productive as the offense needs them to be. Martin already proved himself last year, but the Cougars will count on that phenomenon to occur again with the likes of Robert Lewis, Kyle Sweet and tall target Isaiah Johnson-Mack.

Verdict: The Cougars' 38.2 points per game in 2016 ranked second in the Pac-12 behind only Washington. Losing Marks and Cracraft creates the one big question that this offense will have to answer, especially since it slowed considerably after Cracraft's injury late last year. That being said, Falk has all offseason to develop cohesion with his new collection of targets. He's an excellent quarterback, and Wazzu features a very capable trio of running backs. There is a pressing question here, but the Cougars have the arsenal to answer it.