Defensive wedge done differently

[Team3266Spencer]

Recently my team has been discussing ideas of what kind of drivetrain we might want to use next season. One discussion points that has often come up is traction. Wheels such as omni and mechanum provide great maneuverability but lack traction and usually void you of most defensive capabilites despite the setup of the rest of your drivetrain. Assuming you havn't built a wheel switching mechanic (that I find would likely take up a lot of space, weight, and time), it's difficult to be both very pushy and agile.

Tell me this: do you think there is any practicality behind a deployable wedge that would act as a traction device and a means of redirecting the force of an opposing robot? The concept would be similar to putting your foot behind you when pushing on something. In theory it could provide a simpler way of calling upon defensive capabilities while still maintaining a very agile robot.

Also, has anyone ever done anything like this before?