My unearned opinion of Kirk Herbstreit is that he usually does try to do his job as he is asked. But also that he is oddly mismatched with the world he has chosen to work in. He appears to me to have been naive about openness and honesty in the dealings of sports media, and generally too "soft" for the big bad real world. Things which most of us would stand up to and tolerate, he almost chickens out on. I recall how scared he was that Corso would stick him with his pencil during a "not so fast, my friend" shtick. Corso later turned the pencil around so Kirk wouldn't flinch away. Kirk also is always the one trying to get away when gunfire is shot near set. His scaredy-catness shows in its extremity when he finds that only being half an OSU homer isn't good enough, and "fan reaction" scares him entirely out of the state.
I believe that Herbstreit is the guy who wants to be that nice clean-cut boy next door who everybody likes, but in his business that's pretty impossible (so he ducks and runs a lot.) That sort of mentality also makes one "thoughtful" however, in that you think a lot about issues that you'll face, trying to avoid confrontation and "stress." So, you're a soft thinking person who runs when little things go South. The fact that he is very football smart, and his demeanor makes him non-threatening and often insightful, keeps him his job.