ATLANTA -- For all the questions about his history at Georgia and his long record of success as a visiting coach at Georgia Tech, Mark Richt was only thinking about his ACC debut.Shaquille Quarterman and Joe Jackson each returned fumbles by Georgia Tech quarterback Justin Thomas for touchdowns in a span of less than a minute in the second quarter and No. 14 Miami beat the Yellow Jackets 35-21 on Saturday.Richt improved to 14-0 against Georgia Tech in Atlanta, including an 8-0 record at Georgia and 5-0 as an assistant at Florida State. The win came in Richts 200th game as a coach -- and his first Atlantic Coast Conference game.It was victory No. 1 in league play, which is even more important, Richt said before his focus quickly shifted to next weeks state rivalry game against No. 12 Florida State.I can promise you before we land Ill be watching some Florida State tape, he said.Miami (4-0, 1-0 ACC) led 28-7 after the fumble returns of 17 yards by Quarterman and 18 yards by Jackson -- both freshmen.I was happy, Jackson said. It happened so fast. I picked it up and was like `Im going to score!Georgia Tech (3-2, 1-2) drew to 28-21 before Miamis Brad Kaaya answered with a 31-yard touchdown pass to Stacy Coley late in the third quarter.Georgia Techs offense bounced back with 361 yards after being shut down in last weeks 26-7 loss to No. 5 Clemson. Freshman Dedrick Mills had 99 yards rushing. He scored three touchdowns on runs of 7 and 1 yards and a 9-yard pass from Thomas.The Yellow Jackets couldnt overcome three turnovers by Thomas.We gifted them two scores in the second quarter, Georgia Tech coach Paul Johnson said. It ended up being a big momentum changer and a big part of the game. ... We made way too many mistakes.Thomas said he was looking to pass before being hit from behind by Trent Harris, forcing the fumble recovered by Quarterman. He said he wanted to pitch to Clinton Lynch two plays later but said he wasnt looking, so I pulled it in. ... I was going down at the same time and the ball came out.It was the first time a Georgia Tech opponent returned two fumbles for touchdowns.A fourth-down pass by Thomas was intercepted by linebacker Michael Pinckney with about two minutes remaining.The