This isn't about what the media is telling you. The media didn't say ISUr was going to win the Valley. The coach did. There is a big difference.
As a coach, how your represent your team to the outside world is part of the job. You cannot argue that it is a good thing for a coach to show confidence in his team in the media, presumably to build up the confidence of that team, and then turn around and argue that what the coach says in the media is not a part of his coaching ability. In the first, you are supporting the notion that his words have some sort of positive tangible effect on the team's performance, in the second you are saying that the coaches comments and the team's performance are completely unrelated.
I think you could (somewhat) reasonably make either argument, but not both at the same time.