Mercedes have known for around three and a half months now that Lewis Hamilton would be leaving to join Ferrari for 2025. But they’re still no closer to naming a replacement. It appears that team principal Toto Wolff is waiting for a definitive ‘no’ from Max Verstappen before he finalises his plans. Wolff held talks with the world champion following the Miami Grand Prix, but his concern about Mercedes’ lack of competitiveness remains. Indeed, the Silver Arrows have yet to score a podium this year after six races, their longest drought since 2011. They’re already a whopping 175 points behind Re…