Found a few teams whose descriptions need to be corrected:
Colorado--Stable and content in the Big 12. Was approached by the PAC 10 during the 90s regarding expansion (along with Texas) but did not make the move. If approached again, perhaps they would listen. They would provide the PAC 10 access to the Denver market, which would fit nicely into their current domination of the LA, Phoenix, San Fran, Portland, Seattle markets.
If by market, you are talking about TV markets, then the PAC 10 does not have a presence in the Portland market (#23). The two Oregon schools are in the Eugene market (#120, smallest in the PAC 10).
Missouri--Stable and content but considered a top candidate for invitation into the Big Ten should Notre Dame turn it down again. Pittsburgh has gained some favor for the 12th spot, but Missouri would give the Midwest league the St. Louis market, while Pitt would not add anything that Penn State hasn’t already.
Missouri is not in the St. Louis market (market #21) but is a part of the Columbia market (#137). The St. Louis market does not have any football teams in Division I football.
East Carolina--Provides near top 25 caliber football but little for basketball and virtually no market. Recent 2007 rumblings have a CUSA split into an eastern conference and a new Southwest Conference.
Out of 210 TV markets, East Carolina is in market #105, smack in the middle. That is not quite "no market". FSU, Penn State, Nebraska, and Florida are all in smaller markets.