You remember the three-headed monster, right? It's about returning production that will scare -- terrify! --opponents. Or not.
On offense, it's elite combinations at quarterback, running back and receiver.
On defense, it's elite combinations of a leading tackler, a leader in sacks and leader in interceptions.
This year, we're breaking things down by division.
First up: South Division offense three-headed monsters.
There are two "pure" offensive three-headed monsters in the South: USC and Utah. Both welcome back their leading passer, rusher and receiver, though some fans might be surprised to know that Marqise Lee didn't lead the Trojans in receiving last season.
The biggest mystery team? Arizona, which is replacing its leading passer and rusher and has several wild cards who might challenge to be the first pass-catching option. Typically we'd project a starter, but the Wildcats seem to be completely wide open at QB and RB. So they get a "?" at both positions.
Otherwise, the projections of new starters aren't terribly unpredictable.
1. QB Taylor Kelly, RB D.J. Foster, WR Jaelen Strong
The skinny: If you were ranking three-headed monsters nationally, this might be a top-10 troika. You have a three-year starter at quarterback who passed for 3,635 yards and 28 TDs last year, a receiver who caught 75 passes for 1,122 yards and versatile running back who's dangerous as a runner or receiver.
2. UCLA
QB Brett Hundley, RB Jordan James, WR Devin Fuller
The skinny: Hundley starts the season as a top Heisman Trophy candidate. James started off great last year -- 116 yards rushing per game with a 6.3 yards per carry average in the first four games -- before getting hurt. While WR Shaq Evans is off to the NFL, Fuller leads a strong crew of returning receivers.
3. USC
QB Cody Kessler, RB Javorius Allen, WR Nelson Agholor
The skinny: This is a strong threesome, though some see Kessler being threatened by redshirt freshman Max Browne this spring. Allen surged in the second half of the 2013 season, when he rushed for most of his 785 yards (5.8 yards per carry), but the Trojans have a lot of depth at the position. Agholor is a frontrunner for first-team All-Pac-12 honors after catching 56 passes for 918 yards last year.
4. Utah
QB Travis Wilson, RB Bubba Poole, WR Dres Anderson
The skinny: If Wilson is cleared medically and is 100 percent full-go, he's got a chance to be a good QB, building on what he did while healthy in 2013. Poole is the Utes' leading returning rusher, though he could face a challenge from a handful of other backs, including redshirt freshman Troy McCormick and juco transfer Devontae Booker. Anderson will be joined by Kenneth Scott, who suffered a season-ending ankle injury in the 2013 opener.
5. Colorado
QB Sefo Liufau, RB Michael Adkins, WR Nelson Spruce
The skinny: Liufau was solid as a true freshman starter last year. He should be much better this fall. Adkins combined with Christian Powell to essentially split 1,000 yards rushing in 2013, with Powell offering the power option. Spruce was a solid No. 2 behind Paul Richardson last year, but it remains to be seen how he will perform as option No. 1.
6. Arizona
QB ?, RB ?, WR Austin Hill
The skinny: We honestly have no idea who will start at QB and RB next year, and the Pac-12 Blog believes that's probably not far from what Rich Rodriguez is thinking today. If we were going to go with complete conjecture at QB, we'd bet on a showdown between Texas transfer Connor Brewer and redshirt freshman Anu Solomon. Same thing at running back, where it seems likely a true or redshirt freshman replaces Ka'Deem Carey. Even Hill is a projection here based on his outstanding 2012 numbers, as he sat out last season with a knee injury. Sophomore Nate Phillips is the Wildcats' leading returning receiver.