For most people, spring is about rebirth, the weather warming back up and the sun reappearing. But for at least a handful of SEC assistant coaches, spring is about pressure, and about not getting fired. It’s been a year of historic turnover among SEC assistant coaches, and many hot seats have been vacated. But here are five spots that are feeling some pressure in the spring of 2017.

1. Bob Shoop, Tennessee defensive coordinator

Shoop was supposed to be the missing piece to the puzzle in Knoxville. After saying he had been hired to beat Florida, he delivered … and then plunged the UT defense down the drain. Over the two years before his hiring, UT had allowed 24.2 points and 20.0 points per game, and 365 yards and 362 yards per game. In 2016? The numbers jumped to 28.8 points and 449 yards per game. Even when the Vols won, Shoop’s defense was ugly. Kentucky almost set a school single-game rushing record and racked up over 400 yards on the ground in Knoxville. And sure, UT beat Florida. But they lost to South Carolina and Vandy. Shoop’s seat is about as hot as it can get this spring.

2. Doug Nussmeier, Florida offensive coordinator

Nussmeier came to town with Jim McElwain, and so he’s been the play-caller for two Eastern division champions in two years. Great start, right? Wrong. A 7-5 Will Muschamp-led Florida team from 2014 averaged 30.3 points and 368 yards per game. In the two years since? The Gators slumped to 23.2 points and 334 yards in 2015 and then 23.9 points and 344 yards in 2016. One 1,000-yard rusher, no 1,000 yard receivers, no 2,000 yard passers (though Will Grier would have been). The Gators have promised to “let it fly,” but they can’t start putting points on the board, McElwain will have to go in another direction and soon.

3. Andy Ludwig, Vanderbilt offensive coordinator

While Vandy football in general is back on an up-tick, little of the credit can go to Ludwig’s beleaguered offense. James Franklin’s Commodores cracked 30 points per game in 2012 and 2013. Karl Dorrell was a disaster in 2014 (17.2 points, 288 yards per game), and Ludwig then came on board.

The problem is that even in a bowl-bound season, Ludwig’s offenses looked more like Dorrell’s than those run by Franklin and his staff. Vandy finished 13th in the SEC in scoring and 12th in total yardage. Kyle Shurmur has struggled, as did Johnny McCrary before him (in 2015 and 2016, Vandy had more interceptions than touchdown passes). All of this struggle occurred despite Vandy’s all-time leading rusher, Ralph Webb, breaking off 100-yard games constantly.

If Ludwig can’t get the Vandy passing game out of the 19th century, Mason will be hiring a third offensive coordinator soon.

4. Kurt Anderson, Arkansas offensive line coach

Bret Bielema has had issues at Arkansas, but before 2016, protecting the quarterback and opening holes in the run game weren’t among those issues. Anderson’s line was putrid in 2016, giving up the second most sacks in the SEC (35, up from a total of 36 in Bielema’s previous three years in Fayetteville).

Despite big years from Raweligh Williams and Devwah Whaley, the Hogs also picked up just 4.1 yards per carry on the ground — and Bielema’s first three teams had each reached 5 yards per carry. The pressure is on Anderson to develop a better blocking game — or risk having Austin Allen and those talented backs spend more time injured that making plays.

5. (None), Missouri special teams coach

Barry Odom’s first Missouri team had no special teams coach. That’s not especially unusual, but given the way things played out, if the random assistants who handle the job don’t work it up better this spring, then Odom’s team might also lose its head coach sooner rather than later.

Several SEC teams have experimented with not having a named special teams coordinator or coach. But those teams probably didn’t end up 13th in the SEC in kickoff returns, 12th in kickoff coverage, and last in field goal percentage (46) and extra point percentage (88, after Mizzou managed to miss six extra points — the rest of the SEC missed eight combined). If kicker Tucker McCann has a 2017 season like his 2016 season, Missouri can forget winning any close games.