Mercedes have suffered a difficult start to F1 2023, failing to finish on the podium in the opening two rounds of the season.The last time Mercedes failed to see one of their cars finish on the podium in the opening two rounds was back in 2012, 11 years ago.After their tough start, Mercedes have acknowledged their need to pursue a different car concept, with work well underway behind the scenes to turn their campaign around.Speaking ahead of this weekend’s Australian Grand Prix, Wolff admitted he was “encouraged” by the progress Mercedes showed last time out in Saudi Arabia.“The progress we…