May have already been covered in the thread but I am lazy. Sue me.
In the next few years I don't see CPR leaving of his own volition. As others have noted, his statement that he doesn't see himself retiring here was more toward the point that coaches get fired so often, not that he would get the urge to one up us.
I think the only reason that CPR would leave of his own accord in the future is if he has aspirations of winning a National Title. That would be a pretty tall task here at ISU but if he were offered a job where that is a very realistic scenario, and he wants that, he might go. That would be after several more years of improvement at ISU. I don't think tOSU or LSU will come calling any time soon and if they do it will be because we had a breakout season, not just steady improvement from year to year.
CPR is the perfect man for the job at ISU. He knows this and I think he will stick around longer than expected because of this. He would not have been as successfull at another position because he would not have had the buy-in from the players, AD, or fanbase. At pretty much any other school there would have been one of the three that did not buy in 100%. Take a look at the Pitt job that he was likely a candidate for. If he goes there and struggles for any reason, do you think the fanbase would stay loyal? He's not a PA native. He doesn't have really deep roots in the program. His pride in this ISU team is genuine, but if he used the same strategy with another team right away it might seem fake and players might not buy it. I'm not sure of the Pitt AD status but if they expected CPR to come in and win 8 games a season right away, they might be pretty dissapointed and cut him off before he could get the ball rolling. CPR knows this and if he leaves it will be a for a BIG job. That is a ways off in my opinion.
It's been a near "perfect storm" at ISU. Not that it has been easy, but to get to where we are now, from where we started, has been quite impressive.