Just two thoughts to add.
1. While I don't know that UConn and Mizzou produce enough revenue to prevent their addition from being dilutive to the Big Ten, I think it is likely Mizzou would leave the SEC for the Big Ten in a nanosecond. Not because the league is better, and maybe not even for the immediate financial gain, but because MIssouri as an institution wants to view itself as being comparable to its neighbors to the North, like Illinois, and not to the South, like Arkansas.
2. Can we please never again hear the crazy notion that we're not in the ACC because we didn't want to beat out LV for that slot because we already know the invite to the Big Ten is coming. I think it is absolutely clear that the UConn administration wanted the ACC invite and in fact had heard from sources they mistakenly believed that it was coming. Might it be a good thing we're not already locked in the ACC -- that is possible (I don't believe it but it's possible), but reinventing history is just dumb.