Play starts. One team pulls to the other.
Red team is on offense and using a standard HORIZONTAL stack. Three red players stay back to handler ("handlers"). Notice that the downfield players (players 1-4), called the "cutters," are equally spread across the field and using the entire width of the field for effective use of space.
When the disc is in the middle of the field, cuts start from the middle (players 2 and 3). These are the "active cutters," and, in general, cut in opposite directions of each other.
Note that cuts are not a straight sprint. Rather, cuts include a change in direction, or a juke, to lose your defender. Cuts DO NOT come within 15 yards of the handlers ("no mans land" indicated by the caution symbol).
Throwers look downfield for 3-4 seconds. After that, handlers are expected to "reset" the disc by passing the disc to another handler called the "dump."
When a handler does not throw to a cutter or a cutter has finished/run out of room to cut, their cut has "expired," and they are expected to clear to the sideline. Sideline cutters, often called "wings," "fill" the open space left over. Clearing and filling is how we cycle in and out of cutting lanes while maintaining proper spacing and timing.
Here the continue cutters or "wings" are setting up their cuts and creating separation from their opponents.
The cycle continues.