For family days at the University of Tennessee, former defensive line coach Steve Stripling's wife Gayle would make cookies for the crowd. And every time she did, it didn't go unnoticed by the Vols' best player.
Every time, without fail, Derek Barnett would make a point to seek her out and say, "Hey Mrs. Strip, thank you for the cookies."
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It's a small thing, thanking someone for cookies. But it's something that seems to exemplify the type of players the Eagles are focused on bringing into the organization, especially with new VP of player personnel Joe Douglas leading the draft charge. And it was the one of the stories that stuck out most to Steve Stripling on Friday morning, 12 hours after the pick was made.
"He's got that in him," Stripling said to CSNPhilly.com on Friday morning, just before boarding a flight from Philadelphia back to Tennessee, "and then on the football field, I've seen him just be a monster.
"He has that ability to be quiet, unassuming, polite, respectful, all that, and then on the football field, he's a warrior. When he walks on the football field, he's different, totally different."
Barnett, 20, is a pretty quiet and reserved guy. Some fans thought he didn't look pleased to be picked by the Eagles with the 14th pick on Thursday night, but that's not true. That's just his demeanor - off the field.
On the field, Barnett is a relentless technician with an exceptional motor that powered him to 33 sacks at Tennessee, breaking Reggie White's long-standing record.
"If you get to know him, he doesn't say much," Stripling said. "He's very quiet, but on the football field, when he says something, everyone pays attention. He just has that built into him, to play hard and he's a grinder and focused and all those things."
Stripling joined the Volunteers' coaching staff as an associate head coach and defensive line coach for the 2013 season. That was the year spent recruiting Barnett out of Brentwood Academy in Brentwood, Tennessee. After Barnett's 2016 season, Stripling, 63, took a job as the director of football program development, but he was Barnett's position coach for all three years of his college stay.
And from the time Barnett arrived on the Tennessee campus in 2014, it didn't take long for the coaching staff to realize something was special about him.
Stripling recalls a play that the coaching staff has shown "a thousand times" since it happened back in 2014. During the first or second day of Volunteers' two-a-day camp, Barnett, then a freshman, showed that relentless style for which he's now become known. Barnett lined up as the team's right end as the ball broke to the left and the carrier jetted down field. From out of nowhere, Barnett chased him 40 yards downfield and delivered a sideline hit.
Before that play, Tennessee knew Barnett was good. After that play, it knew he was special.
"Usually when a freshman gets to camp, they're just trying to fit in, learn their way," Stripling said. "But it was from Day 1."
The Tennessee defensive line room tried to live by an acronym: EAT - effort, accountability and technique. Barnett represented all of those facets.
But perhaps more than anything, the technique part of his game is what really stands out. The use of his hands and his ability to bend as a pass rusher are the traits that vaulted him into the top half of the first round.
And Barnett credits "Coach Strip" for a lot of it.
"I'll you what, he was hard on me," Barnett wrote about Stripling in the Players' Tribune. "From the very first day I arrived on campus, he was on me to refine whatever physical talents I had so that I could become a well-rounded football player."
In addition to working with Tennessee coaches, Barnett has also spent time in the offseason working with former NFL defensive lineman and pass-rush guru Chuck Smith.
Barnett (6-3, 259 pounds) didn't perform well at the 2017 combine in Indianapolis. Even though he was dealing with the flu, he wanted to show more. But on Thursday night, that lackluster performance didn't seem to bother Douglas, who raved about his technique and even dropped some scouty lingo with the phrase "ankle flexion."
Stripling, meanwhile, compared Barnett's bend as a pass rusher to former Colts great Dwight Freeney.
"I think that's athletic ability to me, even though it's not a 40-yard time," Stripling said. "It's the ability to get low, reduce the surface and turn the corner. And I think that's one of his strong suites."
And then there's something Barnett has that simply can't be coached: instincts. Barnett, according to Stripling, has the unique ability to leave his gap responsibility at exactly the right time, when necessary to make a play:
"I would say, 'Derek, how did you know the ball was going there?' He'd say, 'I just knew it.'"
For Stripling, Thursday night at the Ben Franklin Parkway was quite a thrill. A college coach since 1977, this was the first NFL draft he had ever attended. Hours after the Eagles used their 14th pick to take Barnett and hours after the hoopla surrounding the event had faded, Stripling sat up late with Barnett, his mother Christine and the rest of the family, reminiscing and reflecting.
A little earlier in the night, when Barnett's name was called, Stripling happened to be seated near a group of inquisitive Eagles fans.
"They were saying, 'who is this guy?'" Stripling recalled. "And I said, 'you're going to love this guy. He's going to work hard, he's going to be tough, he's going to make plays, you're going to love him.' I'm excited for him, it's going to be a good fit."