Here's an example play from the first drive of the Patriots/Falcons game in August:
3rd and 4 NE 36
Result: Scramble, Vick, under pressure, left guard, 16 yds.
Offense: 3 WR, slot WR in motion from left to right slot, TE down off RT, Griffith lone RB.
Defense: 3-2-6 dime, Colvin/Banta-Cain/Warren line, Davis-Vrabel, Sanders playing off TE, Hobbs and Samuel pressure coverage, Wilson NB pressure coverage, Hawkins and G. Scott deep.
Blocking: Colvin rides the LT outside before spinning back inside and getting caught in traffic as Vick scrambles past
Banta-Cain gets caught in a double team with the LG and C, along with Colvin and the LT
Warren is doubled initially by the RG and RT, before the RG breaks off, Warren starts to beat the RT, and Vick scrambles
Vrabel is knocked down wide of Vick from a cut block by the RB Dunn, but when he gets up Vick starts to run
Coverage: Davis spies Vick but runs into an official right when Vick starts to scramble, slowing Davis down
Sanders comes up to clog Vick’s first scramble route, forcing him to go left, where Vick slips past Davis and others
Wilson follows the slot WR into the right flat
Hobbs clashes with his WR at the line, and then sticks with him on a short hook
Samuel is turned around downfield on a deep sideline route
Analysis: A fairly light defense, even for 3rd down. Both Banta-Cain and Warren got taken out of the play by double teams, and Colvin got caught up in traffic himself, leaving some big gaps for Vick to choose from. Sanders did a nice job of clogging one, but Davis wasn’t thinking a step ahead and instead of going ahead and clogging Vick’s next choice, he stuck with Sanders and then met traffic from an official as Vick raced for the hole. From there, a downfield block on Samuel allowed Vick to scamper for the first down.
...
On the snap, you can see that Sanders is lined up essentially as an OLB (he did that a lot in the preseason). Davis is also at MLB:
...
Once the play develops and the coverage takes away Vick's throwing options, Vick begins to look for running lanes he can take.
In the 'A' lane, Sanders is in a spy. When Vick looks right, he sees Sanders ready and waiting. Could he outrun/maneuver Sanders? Maybe. But with Vrabel and Warren also in the area, there's no use.
Davis looks to be either in a spy or a zone. If he's a spy, it's that 'B' lane he should be standing right in. Unfortunately, he's not. Vick's looks left, sees that void, and goes for it, beating Davis and Sanders for a 16-yard gain.