A pair of longtime Atlantic Coast Conference foes trending in opposite directions will meet in Atlanta on Tuesday when Georgia Tech hosts Clemson.The Yellow Jackets (8-9, 2-4 ACC) had built some momentum with a three-game winning streak, but they lost 62-55 at Syracuse on Jan. 7 before they were routed at SMU on Saturday, 93-71. The final deficit against the Mustangs proved to be deceiving as the Yellow Jackets trailed 50-19 at halftime and were down by as many as 37 in the second half.For a team trying to build continuity under second-year coach Damon Stoudamire, the showing in Dallas was a setback.”We have a theme. When we share the ball, we’re pretty good. When we don’t share the ball, that’s how we look,” Stoudamire said. “We put ourselves in an insurmountable hole and we couldn’t get it back. … What we did on Tuesday in Syracuse offensively and what we did against SMU is unacceptable if we want to win games.”Georgia Tech’s lone bright spot on Saturday was Javian McCollum, who scored 20 points off the bench. McCollum’s average of 12.5 points per game ranks second on the team behind Lance Terry’s 15.4.Clemson (13-4, 5-1) appears to be on track for a second straight NCAA Tournament appearance but can’t afford what would be a bad loss on Tuesday. The Tigers’ NET ranking was No. 38 through the weekend, and the team holds quality wins over Kentucky, Wake Forest and Penn State.