one of every three goals come from a dead ball situation. the wall does only work sometimes. although it does prevent direct bullet it it had no wall de keeper might be able to save it better
That statistic is very misleading....and it's used to market the coaching of direct football.......trust me I've seen an educational video that tries popularize it.
a dead ball situation referred to in that statistic is not just free kick on the edge of the box....it includes corner kicks, penalties, throw ins, and free kicks in and around the box that are crossed in and passed............
It's obvious that a teams hardly ever possesses the ball from one goal to the next and scores off of that possession......fouls, interceptions, ball going out of play, etc will take place along the way.....so it is very likely that a goal will come via a free kick, a restart, a corner kick, a throw in, a cross from a free kick etc...........that does not comment directly on the usefulness of a wall.
basically any restart that resulted in 3 or less touches before a shot on goal....... was considered a dead ball situation in the video I watched...so when you think of it that way.....that statistic doesn't really say much......