Everybody always brings up how the "Bush Push" (where Reggie pushed Matt Leinart into the endzone to beat ND) was illegal. I'm trying to understand what makes a push illegal. Are all pushes to help your player illegal? If so, I'm trying to understand why I haven't heard more buzz from Indiana fans about the play where two of our OL pushed Forcier into the endzone for the 2pt conversion last year.
Just looking for some knowledgable insight as to what is/isn't legal for "pushing".
Here are the videos of the pushes
Forcier: http://www.youtube.com/watch?v=igsmIi4V0EM @ 7:10
Bush: http://www.youtube.com/watch?v=weu3ShNvyvE (not sure of exact time)