Dirty is saying you're in Jackson, Mississippi to build a program up, get some stars recruited, win ... then up and leave AND take your stars with you. Dirty is saying you're in it for the longhaul at Colorado, recruit stars and future stars ... then up and leave (if he does). That's dirty.
I've never said anything about Harbaugh so that's moot. I couldn't care less about the Harbaugh brothers.
Steve Spurrier, Nick Saban, Lou Holtz, Butch Davis, Greg Schiano, Dennis Erickson, Bobby Petrino, etc. You really think Deion is a better coach than these guys?