Then you could also say that our loss was Fritsch's fault. His smothered kick, by not going back over the mark properly, led to the ball being kicked to the 50:50 contest, which led to the free kick, the 50m and the goal.
Attributing the loss to one specific event is so difficult.
That being said, agree that you want your leaders to show passion - in the right way. Vince in the 3rd term in a contest was a good example - Lewis not so much.