Pull
Offense has the disc in the center of the field. Defense sets up with #2 flat mark on the center handler, and the other two handler defenders (#1 and #3) poaching the upfield throwing lanes to force the swing to the sideline, while still remaining close enough to close out and set the mark/prevent yardage gain on a swing.
#5-6 are responsible for defending the under-cuts, with #4 and #7 taking the deep cuts.
Offense swings to the flick sideline. #3 sets a hard no-break mark preventing anything up the sideline. #1-2 come to form essentially a temporary 3-person cup around the thrower.
Offense centers the disc back to #2. Defense resets. Offense is gaining nothing and losing yardage, defense is happy.
(reset)
#2 manages to complete a pass upfield through the defense to #6. Defense drops back and resets, with defenders #4 and #7 running with the deepest offensive cutters and #2 coming up to set the mark. #6 does NOT remain to set the mark, even though the player he/she had been guarding was the one who caught the disc.
#6 offense dumps back to the handler and the defense resets. Offense has gained yardage but oh well.
(reset)--#1 too far in the lane
Disc swung to backhand sideline. #1 can't recover to set the mark and #5 can't get to the sideline to cover the cutter there either.
Easy continuation for the offense up the sideline to a wide-open #4. This sideline continuation (where the mark either doesn't get to the handler in time or gets broken) is probably the easiest way for this defense to get shredded in my experience.
With no mark on #4 and defense #6 now on the wrong side of his person, #7 offense catches a huck for significant yardage. Defense transitions in to person defense (man-to-man in non-gender-inclusive language).
#5 on offense is ahead of his/her defender (#4 defense) so instead of remaining on the mark, #6 defense drops back into coverage on #5 and #4 defense comes up to set the mark on #7. Everyone else guards their person.
Transition complete to straight up man-to-man defense. The defense will usually want to transition to person when the offense gets to ~2/3 of the field anyway, as zone/poachy defenses become riskier when finding one soft spot can result in a score. Conversely, person defense becomes somewhat easier when the threat of the deep shot is less realistic with the back of the end zone constraining the offense much more.