In general, the metrics are kind to ISU under Campbell.
Vegas too. In particular ISU has done better than you might think in yards per play on both sides of the ball, at least before last year, which is what they really look at.
Ironically, Vegas minimizes things that Campbell would consider 'winning in the margins'. These includes things critical to winning games like Turnover margin, red zone%, and to some degree even penalty yards and special teams.
Why? Vegas considers those flukey statistics that tend to even out over time, thus making their likelihood hard to quantify going forward and not good indicators of how good a team is at football 'pound for pound', so to speak.
Modern advanced metrics tend to work in a similar fashion because they are trying to evaluate teams on a deeper substantive level than you'd get with traditional means that use surface level stats like W-L record, Points scored/allowed, etc. that are easier to skew based on outliers such as "luck", volume, opportunity, etc.
What does this mean for ISU? We tend to be really bad at getting lucky. Probably not a big shocker to anyone here. What might be a bit of a hot take is is ISU is actually kind an inverse football team from the coach speak we get all the time.
We have consistently built quailty rosters of talented guys who can square up pound for pound with most teams we play, but we haven't done the little things well consistently enough to have a whole lot to show for it.