The Importance of Data in Soccer

There's not much of a natural time unit in soccer. Defense, my goodness, and more confusing to this American than cricket. Yet, market salaries of soccer players are determined. The small amount of data we have seemed to predict those salaries very well. Does this mean, A, we can still get it all done with limited data? Or does it mean, B, having more data doesn't really help us that much? I feel like I'm answering all your questions the same way, which is that analysis is far from perfectly.