The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Within the 1-2-3-1 or 1-3-2-1, players should be aware of their positional roles on attack and defense, especially in counterattacking and defending. When the team is attacking from its defensive third or building out from a goal kick or keeper distribution, players should be aware of spacing between lines.
The principle of spreading out and body position should be recognized by the players. It brings out triangles in attack.