Ralf Schumacher is ‘a bit disappointed’ with Mercedes, so fears Lewis Hamilton and George Russell will have another frustrating year during the 2024 Formula 1 season. The Silver Arrows left a sour taste in Schumacher’s mouth with their efforts through the only pre-season test in Bahrain. Mercedes flew to the Middle East having unveiled a new concept with the W15. Going winless last year tempted the Brackley team to axe their zero-pod idea. Last year was Mercedes’ first Formula 1 season since 2011 to not feature a single Grand Prix victory. Russell at least won the Sao Paulo GP in 2022 after th…