Kent Somers of The Arizona Republic observed that Peterson lined up on offense for a "handful" of plays on Sunday, including a pitch, swing pass and deep route.
More likely, though, this is an experiment that makes waves in July and August, only to be shelved during the regular season.
While Peterson's occasional presence on offense hardly was a surprise, more than a few eyebrows were raised when Carson Palmer ran the option in both individual and team drills.
The idea is to induce defensive paralysis with a dual-threat quarterback. If the defense has no reason to respect the quarterback's rushing ability, it's an injury, negative play or turnover waiting to happen. Defensive coordinators would be licking their chops if they thought there was any chance of seeing Palmer running sideways for a pitch.