... why am I writing about the game now? For two reasons: 1) I have gotten a lot of fan requests to explain the Wildcats. 2) It relates to the article I just wrote about the Colts run defense.

History:

The Wildcat formation and scheme are variations on the Single Wing formation developed by Pop Warner. This goes back to some of the beginnings of football.

Here is a link to pictures of the Single Wing formation and the Dolphins' Wildcat Sweep formation:

Bleacher Report - NFL