ATLANTA -- Georgia Tech coach Paul Johnson still has confidence in his defensive coaches following one of the worst showings ever by the unit.The Yellow Jackets gave up the second-most yards in school history in last weeks lopsided loss at No. 15 North Carolina. Georgia Techs defense has another tough challenge at No. 18 Virginia Tech on Saturday.The search for improvement on defense has been a constant theme for Johnson this season. He said Tuesday a review of last weeks 48-20 loss to North Carolina solidified his belief that defensive coordinator Ted Roofs scheme is sound and the players arent confused.I watch the tape repeatedly over and over and I watch it with the defensive coaches and I understand whats happening, Johnson said, adding he has faith in the defensive scheme. ... As long as its sound as youve got a chance to execute it, thats all you can ask of them.Georgia Tech has allowed 34 or more points in four of its last five games. The defense gave up 636 yards to North Carolina last week, second only to the school-record 667 allowed against Notre Dame in 1977.The Yellow Jackets rank last among the nations 128 FBS teams in third-down defense. Opponents have been successful in converting 52 percent of third-down plays.Johnson said defensive players have not lost faith or lack an understanding of the system.I dont think we have those problems, he said. Ive had those before where the kids would come and say coach youve got to help us. Thats not the issue. Were not having those problems. Weve just got to play better.The defenses inability to get off the field on third down has been the biggest weakness.That creates most all the problems, Johnson said. Not all of them, but it would solve a lot if you could get off the field on third down.The Yellow Jackets (5-4, 2-4 Atlantic Coast Conference) rank last in the league with only eight sacks. Defensive tackle Patrick Gamble leads the unit with three sacks.Georgia Tech has tried to bolster its normal four-man pass rush by sending five or more players on blitzes. That tactic opens the way for experienced quarterbacks such as Virginia Techs Jerod Evans to counter with quick passes to beat linebackers or defensive backs left in man coverages.Johnson, who runs the spread option offense, said he offers advice on defense but wont micromanage on that side of the ball.Ive got enough confidence in our guys on defense to try to let them coach, he said.Virginia Tech is averaging 34.9 points and 444.4 yards per game. The Hokies (7-2, 5-1 ACC) are 4-0 this season when scoring 30 or more points.Game notesJohnson said on his weekly radio show Monday night he expects QB Justin Thomas (upper body injury) to play this week. Thomas missed the fourth quarter of last weeks game with the injury. Center Freddie Burden missed the second half, also with an upper body injury. Johnson said Tuesday no injury update would be provided to reporters before Thursday.---More AP college football: www.collegefootball.ap.orgCheap NFL Jerseys China .Y. -- Knicks coach Mike Woodson said Wednesday that J. Wholesale Jerseys From China .ca looks back at the stories and moments that made the year memorable. http://www.wholesalechinajerseysforcheap.com/ . Already owning gold from competition in Vancouver in 2010, Loch posted a combined four-run time of 3:27.526. That included a track-record third run of 51. NFL Jerseys For Sale .Y. -- Injured Buffalo Sabres forward Marcus Foligno did not practice with the team Monday and head coach Ron Rolston said its unlikely hell play in Wednesdays season opener in Detroit. Cheap NBA Jerseys China . -- Jacksonville wide receiver Cecil Shorts will likely be a game-time decision whether hell play Sunday in the Jaguars home game against the San Diego Chargers.North Melbourne return to the scene of last seasons AFL preliminary final loss against West Coast and club captain Andrew Swallow is keen to make amends.On Sunday, the Kangaroos take their first trip west to Domain Stadium since a 25-point loss that still rankles with many at Arden Street.Unfancied after qualifying eighth and going about the finals the hard way, Brad Scotts side were ahead as late as 10 minutes into the third term.Six straight West Coast goals put paid to their meritorious season, a burst that Swallow said still hurt to think about.It burns away because its hard to make finals and prelims and grand finals, he told reporters on Wednesday.It was within our grasp and we let it slip so we want to get back out there and hopefully win over there and help set up our year.Swallow said in-doubt duo Jarrad Waite (hip) and Daniel Wells (calf) would be assessed at Thursdays main training session for selection.Like fellow club captain Kieren Jack of Sydney, Swallow plays game 200 on Sunday in a high-pressure contest.After leading the competition with nine-straight wins to start the year, North Melbourne find themselves back in seventh place after consecutive losses to finals opponents Geelong, Hawthorn and Adelaide.ddddddddddddGiven the eighth-placed Eagles are bound for September, the contest looms as both a chance to avenge last year and steady their current campaign.Swallow said suggestions the Kangaroos had fallen away were way off the mark.Were still sitting here at 10-4, he said.Its the best position the clubs been in since Ive been here.Apart from a bit of percentage, wed be sitting second or third ... we feel like were in a good spot.The milestone man said Brent Harveys incredible endurance made his 200-game mark look somewhat insignificant.When you play with someone whos played over 400 games, it puts it in a bit of perspective, he said.The dream was to play one game and, from there, you worry about trying to clock em up. 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