JACKSONVILLE -- Senior writer John Oehser's notes and observations as defensive coordinator Todd Wash and offensive coordinator Nathaniel Hackett speak to the media on Day 10 of Jaguars 2018 Training Camp at the Dream Finders Homes Practice Complex …

1.Yannick Ngakoue has been a standout of the first 10 days of '18 camp, with the third-year defensive end's theme remaining a familiar to anyone following the team. He is a phenomenally motivated player driven to prove he was overlooked as a third-round selection in the 2016 NFL Draft – and that he is overlooked by anyone who doesn't believe he's the NFL's best pass rusher. The rip move Ngakoue has added to his pass-rushing repertoire has given both Jaguars starting offensive tackles – Cam Robinson and Jermey Parnell problems – in camp, and Wash on Monday said the desire that has driven Ngakoue to 20 sacks in two NFL seasons hasn't waned. "It says what kind of person he is, his desire and the way he is driven is that he wants to be the best there is in the NFL," Wash said. "He comes to work every day and does that. … He definitely has a chip on his shoulder. That is the thing – we have known that since we worked him out right before the draft. He is a guy that is going to do whatever it takes to be the best. We really appreciate that quality with Yann."

2.A new face on the defense drew praise from Wash Monday. D.J. Hayden, signed as a nickel corner to replace last year's nickel – Aaron Colvin – had two pass breakups and a sack in Friday's Florida Blue Family Night practice in TIAA Bank Field. Wash said the performance was indicative of how Hayden has played through most of camp. "I thought D.J. has had a great [camp] once we got the pads on," Wash said of Hayden, a first-round selection by Oakland in the 2013 NFL Draft who signed with the Jaguars as unrestricted free agent from Detroit this past offseason. "I think he has been playing extremely well." Wash said veteran Tyler Patmon and rookie Tre Herndon give the Jaguars depth at nickel, adding "These preseason games are going to be big" for the position. "Once again, we have to find out how well people are going to tackle," Wash said. "D.J. has been a good man-to-man player. He is really starting to excel in the zone coverages that we play and the instincts that it takes to be a nickel. We have to find out who can blitz. We are going to try to bring our nickel in for that kind of stuff at times and can he win one-on-one battles? Those are all things we are going to find out in the games here in the next month."

3.Rookie wide receiver D.J. Chark Jr. continues to be a major camp storyline, with the second-round selection from Louisiana State again standing out for a stretch Monday. Chark worked in some drills with the first team Monday, catching multiple short passes – including a 10-yarder from starter Blake Bortles. He has shown an ability to get open consistently on short and intermediate routes after making plays downfield earlier in camp. "D.J. has done a really good job," Hackett said. "I think his ability to pick up the system has been very impressive. [Wide receivers coach] Keenan [McCardell] has done a really good job working with him. [Offense – research] coach [Eric] Price [has done a good job] really getting him dialed in. He has been able to move around and play multiple positions, which as a rookie in a brand-new system, that's always a challenge. … You're asking him to go outside, inside. His route tree is very expansive. He has done a really good job embracing it, not letting it overtake him.''

4.Among the notable trends of '18 training camp has been the consistency of the offensive line. Whereas the Jaguars worked multiple players in starting roles on the interior of the line in last season's training camp, the starting line this season consistently has been Robinson, left guard Andrew Norwell, center Brandon Linder, right guard A.J. Cann and Parnell. Hackett noted the consistency of the unit Monday, noting that both Cann and Parnell missed time and reps during the on-field portion of the offseason program. "I give a lot of credit to Jermey Parnell," Hackett said. "He has done a great job keeping himself healthy and being able to be out there. He has had a ton more reps working with A.J. A.J. has been out there this whole time, which is great. It's great to see those guys continually work together, talk and communicate, especially with the pace that we go at practice. It stresses them to have to talk all the time. I think that's something that you see consistently getting better." …