There are no guarantees in college football, but a few things seem to be money in the bank.

Alabama is going to have a big, bruising tailback who will pummel SEC defenses. Oklahoma is going to have a quarterback throw for a billion yards. Wisconsin is going to have a few dominant linebackers who frustrate B1G offensive coordinators.

In any given year, those things shouldn’t be in question. It’s probably time that we add another thing to that list.

Greg Schiano is going to turn a secondary into one of the best units in the country, and probably develop some defensive backs into first-round talents in the process. That’s what he did with an inexperienced group in 2016, and that’s probably what he’ll do with an inexperienced group in 2017.

At this time last year, the secondary was Ohio State’s biggest question mark. That’s what happens when you lose three starters early to the NFL. It didn’t help that the Buckeyes lost Chris Ash to Rutgers. It was easy to doubt the Ohio State secondary in Schiano’s first year in Columbus. Shoot, even Urban Meyer was admittedly worried about the transition.

In hindsight, doubting Schiano wasn’t very smart. All the Ohio State secondary did was finish first in passing yards per attempt allowed, third in scoring defense and seventh in pass defense.

Oh, and the OSU secondary could have three first-round picks in a couple weeks.

Quick question: Can you name which team’s record Ohio State would tie if it had three defensive backs drafted in the first round? That would be Miami (FL) in 2002.

Another quick question: Can you name the defensive coordinator who developed that Miami (FL) secondary in 1999-00? That would be Schiano.

It’s pretty simple. Give Schiano talented players and he can turn them into superstars. He gave freak athletes like Malik Hooker and Ed Reed the freedom to be ballhawks. Schiano helped shutdown cornerbacks like Marshon Lattimore and Phillip Buchanon thrive in man-to-man coverage.

But arguably the most impressive endeavor of Schiano’s college coaching career didn’t come at Miami (FL) or Ohio State. Schiano’s time at Rutgers best illustrated his secondary prowess.

RELATED: Ohio State poked fun at media outlets for misidentifying Marshon Lattimore

When Schiano took over at Rutgers in 2001, the program hadn’t been to a bowl game in 23 years. In the seven seasons prior to Schiano’s arrival, the Knights were just 21-55. Rutgers didn’t even have a player drafted in the previous five years.

By the time Schiano left Rutgers — he, of course, turned that job into an NFL head coaching position — the program was in completely different hands. Including members of Rutgers’ 2013 class, all of whom played for Schiano, the Scarlet Knights had 24 players drafted from 2003-13. Seven of them were defensive backs. That was more than Michigan produced during the same stretch.

And not only did Schiano’s secondary talent at Rutgers make it to the NFL, it succeeded upon arrival. Remember last year when three Rutgers defensive backs had interceptions for the eventual-Super Bowl champion New England Patriots in the AFC Divisional Round?

The greatest football coach on the planet — and maybe ever — couldn’t help but show Rutgers love:

That was Schiano’s doing. Believe it or not, Devin McCourty once said that Schiano was a tougher coach than Bill Belichick.

Schiano has the reputation for being an intense, no-nonsense guy who can build up anyone. If you’ll recall, McCourty’s only college scholarship offer was from Rutgers. After five years with Schiano, the former two-star recruit was a first-round NFL draft pick.

As long as he’s at Ohio State, Schiano won’t be working with any two-star recruits. The norm at Ohio State is signing five-star defensive back recruits like Jeffrey Okudah and Shaun Wade. Combine that with Kerry Coombs, who Schiano says is the best cornerbacks coach in the country, and you have a winning formula.

RELATED: Mel Kiper Jr. has three Ohio State DBs, Jabrill Peppers in Mock Draft 3.0

It was interesting hearing Meyer talk about the Ohio State secondary on Wednesday. In the same breath that he brought up how good of an impression OSU’s three blue-chip DB prospects made on the San Francisco 49ers, he discussed the new-look secondary. There was minimal concern from Meyer that once again, OSU has just one returning starter in the secondary.

Meyer said JUCO transfer Kendall Sheffield was the favorite to win the starting cornerback job opposite of top corner Denzel Ward. The early enrollee defensive backs, Meyer said, also improved greatly and will compete for playing time in the fall.

If you didn’t know any better, you’d forget that OSU could become the first school to produce four first-round defensive backs in a two-year stretch. Regardless of the youth or inexperience that’ll give the Buckeyes in 2017, OSU still has Schiano. Meyer trusts him to turn any group into one of the best in the country.

And if we’ve learned anything about safe bets in college football, that’s money in the bank.