For more information, read this interesting Washington Post article carefully. Sure, a few more goals were scored last World Cup, by way of corners, but it's still a remarkably hard thing to do. 16 goals out of 358 corners. Wow. Scoring off a corner or cross is essentially a waste of time. Note to USMNT.
Washington Post article, from 2014 (it's a safe link)
Ron Burgandy and Borat have used loose "facts" before. But the jury's out: Corners and crosses are a waste of time. It's a fact. Get used to it, America. What does that mean for the USMNT? Promote players who aren't that good at corners and crosses: Torres, Nguyen, F. Adu, Yedlin, Nagbe.