Yes but your forgetting that TCU and Boise would get more money, resources, and have access to better recruits if they join a BCS conference.
More money doesn't translate to success, take a look at Congress.
More money means you can build newer, bigger, weight rooms, locker rooms, and such. You still only get 85 players.
Every team in the SEC gets $11 or $12 million minimum through revenue sharing. How many SEC Championships does Vandy have?
Acess better recruits? They can recruit nationally. They do it now. BSU doesn't have the oil money alumni that TCU has that hasn't done much for TCU has hit. Or SMU for that matter.
Let's be candid how many blue chip recruits list USC, UF, OSU, ND, and BSU? Go ahead itstead of hypotheticals, do the exercise.
A sleeper QB that may emerge with "franchise" potential may go to one of these schools or a WR that couldn't get offers elsewhere. Feel free to post the list of QBs and WRs and 5 Star OLs who rejected playing for Carroll, or Tressel, or Stoops to go to BSU.
Marshall Faulk was a 7 time A-Pro RB but he went to San Diego State because all the majors that offered him in college wanted him to play CB. He was convinced he was a RB the prime time coaches - across the country felt his body was too small to take the pounding. He was the exception not the rule. SDS had some exciting games while he was there than faded back to mediocrity.
Minnesota has a major conference, money, resources, a new stadium, and a tradition that includes a bunch of Big 10 Championships and NCs. - They're still Minnesota - buried in the Big 10. And IF Henderson ends up there with Carufel they're still not going to win a NC much less a Big 10 Championship.
Boise St has only been a 1-A school for 13 years. Idaho is pretty country, they've got a cute smurf field. They also have a very, small recruiting base and few athletes want to forego playing at OSU, OU, ND, USC, UF, UGA, etc to go there.
TCU has an N.C. and has been the Champion of 5 different Conferences including the SWC (Big 12 forerunner). TCU has a rich tradition. The Davey O'Brien Quarterback Award is named for the Frogs All-American QB.
But TCU could join the Big 12, PAC 10, whatever, and they would still be outrecruited and outplayed by UTX, OU, and a dozen others as they have been since the 1930's. There's a reason they went from the SWC basement to the WAC, CUSA, and MWC Champion all in a span of 10 years.
On a given Saturday TCU can play and may beat one of the big boys. Playing among the big boys 9 or 10 times a year and they will drift to the mediocrity they have know in the past.