ATLANTA — When Carolina made its most recent visit to Atlanta, all the talk was about the 14-0 Panthers’ try for a perfect season. Now that the Panthers are 1-2, they’re hearing more questions about their imperfections as they enter Sunday’s game against the Falcons. Quarterback Cam Newton says the Panthers weren’t perfect even before their undefeated regular season was spoiled by the 20-13 loss to the Falcons late in 2015.