Wolff didn't want to miss out on Antonelli like he did with Verstappen

Max Verstappen could have been a Mercedes driver. However, Toto Wolff, with Lewis Hamilton and Nico Rosberg as the German team’s main drivers, didn’t see the sense in putting an underage Verstappen in the car, and with the level of domination Mercedes was exerting over the rest of the field the Austrian felt it was not worth the risk. A decision which he now seems to rue to this day.