With spring practice underway at many Pac-12 destinations, it's time to do our annual position-by-position breakdown.

Offense and defense are done, so we'll wrap it up with special teams today ... beginning with the South.

Arizona: Kicker Casey Skowron has his ups and downs, but finished with a respectable 71.4 percent field-goal percentage on 28 attempts last season. Skowron's job doesn’t figure to be in jeopardy, but the Wildcats have a pair of freshmen (Ollie Graybar and Josh Pollack) on the roster. Second-team All-Pac-12 punter Drew Riggleman will be back for his third year as the starter. DaVonte' Neal (punt returns) and Tyrell Johnson (kick returns) also return.

Arizona State: Kicker Zane Gonzalez was a semifinalist for the Lou Groza Award, given to the nation’s best kicker, and converted on 22 of 27 field-goal attempts. He has two years of eligibility of remaining. Left-footed punter (here is Bill Belichick on why that's significant) Matt Haack will also be back after averaging 43.3 yards per punt last season. The Sun Devils will spend some time during the spring addressing the return game after losing Kyle Middlebrooks and Damarious Randall, who handled punt and kickoff return duties last season.

Colorado: Kicker Will Oliver is gone, which leaves Chris Graham and Diego Gonzalez as the remaining kickers on the roster. Neither has kicked for the Buffs, but Gonzalez does have college experience ... as a punter at Monterrey Tech in Mexico. Recent signee Alex Kinney is the favorite to replace Darragh O'Neill at punter. Kinney was ESPN.com’s No. 13-ranked punter in the Class of 2015. Several players are in the mix to return kicks and punts, namely Shay Fields, Nelson Spruce, and Phillip Lindsay.

UCLA: After an underwhelming sophomore year, Ka'imi Fairbairn became one of the Pac-12’s most consistent kickers in 2015, converting on 18 of 22 attempts. He’s hit 29 straight attempts from 35 yards or fewer. Punter Matt Mengel handled a majority of the Bruins’ punts (59 attempts), and that doesn’t figure to change, but Adam Searl, who punted 11 times during the season, seemingly has a chance to fight for more playing time. Ishmael Adams should again be one of the conference’s most dangerous return men.

USC: After four years of Andre Heidari, USC is looking for a new kicker. That competition is expected to include Alex Wood, Heidari’s backup the past three years, former junior-college transfer Matt Boermeester, and Wyatt Schmidt. Punter Kris Albarado will be USC’s starting punter for the third season, but don’t sleep on quarterback Cody Kessler's ability to pin teams deep as well. The Trojans aren’t short on return options, but it’s hard to foresee many opportunities for anyone not named Adoree' Jackson, who will be of the nation’s most dangerous special-teams weapons.

Utah: 'Automatic' Andy Phillips led the Pac-12 with 23 field goals on 28 attempts and converted 12 of 15 attempts from 40 yards or longer. No one else in the conference made more than six attempts from that distance. Both Phillips and punter Tom Hackett were named first-team All-Pac-12 and will return in 2015. The special teams does figure to take a hit with the departure of Kaelin Clay, who was given first-team all-conference honors as a return man.