Yeah, you didn't say that USC was a for sure lock to win... you were only 98% sure
That beats the normal 95% confidence level needed for some statistical tests.
The OC works for the Head Coach. There is no reason for the Titans to bring in one new guy, and make everyone learn his system (coaches and players included). It is better to have Chow come in, learn their system, their terminology, and then add to it in the ways he can. And he will... he's a really smart guy.
What I meant about the lack of interest was that he didn't really get interviewed for any other jobs. I would have thought a lot more teams would at least throw their hat in the ring to interview the guy. But now he has the elusive NFL coordinator job, and he could be a couple good seasons away from a head coaching job in either the NFL or college... then he can custom build his own offence.