It’s no secret that running backs have been falling out of favor on draft day since the NFL’s pre-1980s ground-and-pound era. The amount of draft value invested in the position has declined continuously over the last half-century. This reached a low point in 2014 when not a single running back was taken in the first round for a second consecutive season.

Things have changed a bit over the past few years. In the first round of the NFL Draft on Thursday night, two rushers — LSU’s Leonard Fournette (who went to the Jacksonville Jaguars) and Stanford’s Christian McCaffrey (picked by the Carolina Panthers) — were taken among the top eight picks for the first time since 2005. This came after the Dallas Cowboys picked Ezekiel Elliott fourth overall in 2016, to great success. And in 2015, two running backs were chosen in the first round.

Clearly, a running back renaissance is in the works. Right?

Well, sort of. While it’s true that teams haven’t sworn off stud running backs completely at the top of the draft, they’re also being more selective. After McCaffrey went at No. 8, the class of 2017’s other first-round hopefuls — such as Florida State’s Dalvin Cook, Tennessee’s Alvin Kamara and Oklahoma’s Joe Mixon — were all still available at the end of the night. It’s been five years since a team has taken a RB in the second half of the first round.

A lot of this has to do with the economics of the position, as ESPN’s Kevin Seifert wrote on Wednesday. Because the rookie wage scale pays high picks well and running backs are being devalued across the league as a whole, highly drafted RBs are instantly among the highest-paid players at their position before they ever take a snap in the pros. That means teams better be damn sure about a running back before spending a first-rounder on him (lest they end up with the next Trent Richardson). The problem: teams can’t be sure about much on draft day. Only the elite of the elite check off enough boxes to make that kind of investment feel worthwhile.

Adding to the risk, running backs also age differently from the rest of the NFL. Unlike, say, quarterbacks — who improve steadily during their early-to-mid 20s and peak right before age 30 — a running back’s shelf life is much shorter. Depending on the research you look at, RBs peak somewhere between the ages of 24 and 26, with the majority of their most productive seasons front-loaded early in their careers. So if you do manage to snag a game-changing runner, you’re most likely getting the best he has to offer before his rookie contract even has a chance to expire.

Because of this, a team willing to invest a high pick on a running back better be in a position to win immediately, otherwise his best years could be squandered. For all the talk about the “Zeke Effect” — that Elliott’s high selection and subsequent performance in Dallas would spur increased investment in running backs on draft day — Elliott fell into a tremendous situation as a rookie with the Cowboys. Dallas’s mammoth offensive line paved the way for Elliott to lead the NFL with 999 yards before first contact. That’s a luxury Fournette won’t have in Jacksonville, where he’ll run behind an O-line that ranked sixth-worst in Football Outsiders’ adjusted line yards metric. (Maybe he should call 2015 No. 10 pick Todd Gurley, who has had to run behind a patchwork Rams line, for advice.)

The Jags are betting that Fournette’s ridiculous ability to break tackles and run away from defenders in the open field will render that point moot, and maybe it will. But that also underscores just how talented a running back needs to be to justify a high draft pick these days. For those who possess that skill level, things are looking up compared with a few years ago. But for the rest, they’ll still have to wait to hear their names called at the podium.