When two strikers are picked together, post-modern football pundits practically foam at the mouth.
Two centre forwards are a throwback to a distant age when dinosaurs roamed the penalty box is the popular cry.
Archaic managers like Roy Hodgson cling to their 4-4-2 roots like a medieval peasant clinging to the notion of the world being flat.
In these enlightened times of 4-2-3-1, or even 4-2-4 when the Spaniards are involved, a manager who favours two strikers is clearly a page short of a coaching manual.
So when Brendan Rodgers declared early on his intention to partner Daniel Sturridge with Luis Suarez, the knee-jerk reaction was as predictable as it was tiresome.
How could they play together?
Aren't they too much alike?
Well, yes, they both score a lot of goals.
They are also reluctant to remain stationary around the penalty box. They are content to drift away from markers. They are happy to forage from the flanks. They move. They retreat. They infiltrate.
In other words, their shared strengths determine their compatibility to play together.
Neither man covets the same spot in a manner more typical of a modern centre forward such as Didier Drogba.