Necessity is the mother of invention. And in this case, the necessity for the Steelers arose from the loss of defensive lineman Stephon Tuitt.
With Tuitt out for the season after suffering a torn pectoral muscle, the Steelers needed to pivot to a different way to get things done on passing downs.
Their solution -- at least on Monday night in their 27-14 win over the Dolphins -- was a "Rover" package in which the "rovers" were some players who aren't often expected to do the things they were doing.
Defensive lineman Cam Heyward was the only 300-pound player on the field and would walk around like a caged lion before the snap of the football.