-—”Id venture to guess that Boise, Utah, and TCU would win 3 or less games if they had to play 8 SEC teams as part of the regular season schedule.”-—
Not a chance. Boise State would be just as much a contender in the SEC. They’d win their home games, and maybe lose one on the road, just like every other SEC contender. Then they’d win all of those out-of-conference games against SJSU and Duke.
Boise, Utah, nor TCU could ever run the table in the SEC.