Modern technology has revolutionised sports. As Moneyball made famous in baseball, the growth of analytics has been sweeping and significant. Decisions are made with more information than ever before. There is a wealth of data that managers, coaches and scouts can delve into to better inform themselves in their processes.
As a superb collection from Tom Bogert of mlssoccer.com outlines, analytics is now extremely prominent in Major League Soccer. As an aside, I would recommend you take 15 minutes and read through the pieces. There are some extremely interesting nuggets about how the process of analytics, its future, and how valuable it is in football in comparison to other sports.