The conversion rate of our other players is irrelevant because they have taken so few. If I'm not mistaken, Neymar has taken three and scored two so far. That's a conversion rate of 66%. But what's not to say that he'd have 90% if he took the next 7 penalties or whatever. Or the other way around. When there's a huge difference in the number of shots taken, you can't really use the conversion rate to compare. Score one, miss one, and that's 50%. But you might score the next 15 times. Messi has taken so many that his conversion rate shows a fairly realistic number. A total of 3 or 5 or 10 penalties is incomparable to that.