Generally, in touch football, nearly every play is a passing play, whereas run plays and pass plays tend to be well balanced in organized football. Some games will also implement a "blitz count", or a period of time that must elapse after the snap before the defense may cross the line of scrimmage in order to attempt to tackle the quarterback. The count thus gives the quarterback time to complete a pass in the absence of effective blocking (when teams are small, there is often no blocking at all). Other games will not use a count and thus blocking becomes important. Conversely, in the presence of a "blitz count" there is also often a "QB sneak" rule, which prevents the quarterback from taking unfair advantage of the blitz count by preventing the quarterback from crossing the line of scrimmage before the blitz count is finished.