In any other Formula 1 season, it wouldn’t be a huge surprise for a star driver not to know his next destination on the grid at the start of the summer break. The driver’s market is one of the most fascinating aspects of F1 and this season everything has been accelerated by one man: Lewis Hamilton. Nobody saw Hamilton’s move from Mercedes to Ferrari coming at the beginning of February, least of all Carlos Sainz. Ferrari were planning to offer Sainz a new deal at one point before learning of Hamilton’s availability. With Charles Leclerc signing a new long-term contract in January, Sainz was the…