The longer Mark Stoops has been at Kentucky, the more multiple his defenses have become.
The defensive coaches learned quickly that just being a 4-3 or a 3-4 made it too easy for opponents to pick the defense apart.
"If you're staying in one thing, they're going to find a weakness either in your scheme or your players," defensive line coach Jimmy Brumbaugh said. "So now we have some added flexibility within the schemes."
That added flexibility comes with a name: Andy Buh.
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The former defensive coordinator or co-defensive coordinator at places like Stanford, Nevada and California, was hired to make the UK defense more dynamic and more multiple by focusing on the outside linebackers.
"We kind of grew into a multiple defense and we developed more 3-4 schemes and the outside linebackers were involved in our schemes quite a bit, but we didn't have an outside linebacker coach" until now, defensive coordinator D.J. Eliot said.
It meant those all-important hybrid players like Alvin "Bud" Dupree and Jason Hatcher bounced back and forth between Brumbaugh and Eliot, who coaches linebackers.
And lost in that shuffle sometimes are the details that Stoops harps on, the fundamentals that can elevate a defense from good to great.
The Cats coaches think Buh can help the team make that leap.
"I'm hoping that I can add that portion to our staff and be able to open some of the more dynamic packages, be able to do more of the dynamic packages out there," said Buh, who also will assist on several of the special teams units.
Having one coach to specifically work on the details for that position, which requires a unique skill set, will help the entire defense, Brumbaugh said. It will enable him to focus on the minutiae involved in coaching the interior linemen, too.
"Having him here allows you to focus on the small, small, small details and individualize coaching for each guy and make sure he understands everything he's doing and why," Brumbaugh said.
When Buh, 41, parted ways with California in 2013, he spent his year off learning everything he could about different defensive schemes.
It almost was like a sabbatical to dig deeper into defenses.
"One of the things I did throughout the whole last year was study the 3-4 defense, because I've been a four-down guy my entire career," Buh explained. "So that gave me a chance to visit a lot of my friends and really study and dive into the nuts and bolts of the 3-4. That was another thing that attracted me to this job."
Buh (pronounced "Boo") spent time with D.J. Durkin at Florida and Dave Aranda at Wisconsin. He visited some 4-3 scheme coaches as well, friends like Chris Ash at Ohio State and Arkansas' Bret Bielema, whom Buh coached under at Wisconsin.
At first, Kentucky's outside linebackers hated to go away from Brumbaugh, but players like redshirt freshman Denzil Ware are seeing the payoff in the details he's already learned at spring practice.
"I was being coached by Coach Brumbaugh and I took it hard, but he's a nice guy," Ware said. "He's after us every day, every play. Just having Coach Buh as a coach is good."
And even though Ware described Buh as "a funny guy," he also noted that he has a no-nonsense way about him.
"He's all about working hard, he don't want 100 percent, he wants 110 percent," Ware said. "He just wants his players to be the best."
Buh is big on getting the little things right.
Winning is in the details, he stresses.
"Are you ready, willing and able?" Buh said he asks his group, before reminding the players "that willing and able come before ready."
The Escondido, Calif., native's focus on the details will be key in the defensive meeting rooms as well, Stoops said.
The head coach's schedule often spreads him thin and on Stoops' two previous staffs, another defensive coach also was in charge of special teams, which meant a bulk of the game planning fell to Eliot, Brumbaugh and cornerbacks coach Derrick Ansley.
The redistribution of responsibilities will take an already multiple defense and give it more wrinkles, Stoops said. It helps that Buh has been a coordinator before.
"Just do the math and look at all the teams we compete against," he said. "There's offenses that are very complex, and there's a lot of good coaching. ... I wanted somebody to bring some more experience and give us some help in the defensive room."