Take the end of practice Monday night, for instance. The players who were on a roll then were many of the same ones who were responsible for 12 penalties Saturday night in the 56-3 loss to Nebraska. More if the nature of the penalty called for an additional reminder. The Raiders have been rolling for flags. It isn't a new punishment, but it isn't old school.
Old school is wind sprints or running bleachers.
Rolling has to be monotonous as all get out, to start with. Then it generates some internal discomfort. Not to mention that when done on a grass practice field, it brings itching into play. But it keeps their legs. They'll be able to run tomorrow.