Drew Clayton proposed to his now-fiancee, Kayla Posey, in Nick Saban's office back in May.

TUSCALOOSA, Alabama -- When Drew Clayton decided to propose to his girlfriend back in May, he stuck to a simple mantra: Go big or go home.



Clayton, a Mississippi State alum, knew he wanted to do something special to surprise his now-fiancee, Decatur native Kayla Posey, who was finishing up graduate school at the University of Alabama.



After working with a fraternity brother to design her engagement ring, Clayton turned to another friend, an Alabama grad, to brainstorm the perfect proposal.



In the end, only one place in the world made sense for Clayton to ask the most important question of his life.



Nick Saban's office.



Luckily, Posey had a few connections, having worked in the Alabama Football office for years while in school and eventually working her way up to being one of Saban's student assistants.



Posey's co-workers helped orchestrate everything, including sending her to lunch the day of the proposal so Clayton could set up in Saban's office (unfortunately, he was out of town).



He swapped out the 2012 BCS National Championship ring on Saban's coffee table with Kayla's custom-made diamond and then retreated to the only place in the office where a man could reasonably hide.



Nick Saban's private bathroom.



"For 30 minutes, my stomach is churning and I'm waiting on Kayla to get back," he said. "It was a very well-kept bathroom, as we would expect from such a perfect coach."



He also took a peek at Saban's snack stash, which included several boxes of Oatmeal Creme Pies.



"I was kind of hungry, so I figured he wouldn't miss one," he said.



Minutes later, Kayla pulled into the parking lot. It was showtime.



"One of my main jobs was giving tours of the athletic facility," Posey said. "I had four tours that day, so I was all dressed up, and my co-workers told me another tour had been added at the last minute."



Posey's co-workers convinced her that a "very important" guest was coming in for a visit and that she needed to shine the rings in Saban's office as soon as possible.



"When I got into the office, one of the national championship boxes was closed," she said. "I started cleaning it with my dress and I opened the box."



"I looked at it for a second, and I thought, 'That's my ring.'"



Clayton emerged from the bathroom, dropped to one knee and asked Posey to be his wife.



The staffers in charge of filming practice had planted a hidden camera beforehand to capture the entire thing.



"I know she loves Alabama and loved working in that office," Clayton said. "It was her place, so I knew she would never expect me to be there."



Posey said once she got over her shock, she was overwhelmed by everything Clayton and her co-workers did to pull off "one of the greatest days of her life."



"I was never the kind of guy that wanted to 'go to dinner and go on a walk and then pop the question,'" Clayton said. "I wanted something that was very cool, and something we could always remember."

Watch the proposal: