One of the most talked-about rivalries in Formula 1 in recent years is not one between two drivers on track, but between team bosses. Toto Wolff and Christian Horner make no secret of the fact that they are not best friends and are not shy to give each other the occasional jab. During the winter test in Bahrain, Wolff did not name specific names, but hinted that certain team bosses are less suited to their role than others.