The "Dial up the Blitz/Pressure/Etc" seem to be mostly mentioned in games that have a "name" defensive coordinator.... Narduzzi was in that category last year, the immortal Brett Venables (they all love him), Muschamp/Strong when at Florida, Chizik now since he took a step down, and I'm sure you guys can come up with a few more.
I am in my mid 50's and can clearly remember when only a few games a Saturday would be on. It would be the same teams over and over along with classic match ups......., Michigan/Ohio State/Notre Dame/USC/Texas/Oklahoma/Nebraska/Miami/ Florida and/or Florida St/ whoever was good. Then you'd have your teams that would be on maybe once/twice a year.....Pitt/Penn State/Texas A&M/Stanford/Arkansas/Georgia/Michigan St/some other big ten teams..... you rarely saw a PAC 10 team other than USC.....anyway got me to thinking, I must have watched 100's of those games from 70's into 90's....and quite honestly there were only two defensive coordinators that I can remember being mentioned ALL THE TIME...... Lloyd Carr and Jerry Sandusky.
I couldn't tell you who was the defensive or offensive coordinator at any of those other schools, but they always seemed to mention those two. Honorable mention to Gary Moeller and Fran Ganter....they'd get mention once in awhile. Maybe I'm wrong but that is what I remember