Why OU should think again if it's considering leaving the Big 12

Cooper Neill/Getty Images KNOXVILLE, TN - SEPTEMBER 12: Head coach Bob Stoops of the Oklahoma Sooners hugs running backs Samaje Perine #32 and Joe Mixon #25 after an overtime victory against the Tennessee Volunteers at Neyland Stadium on September 12, 2015 in Knoxville, Tennessee. (Photo by Jackson Laizure/Getty Images)Tim Cowlishaw, sports columnist for SportsDayDFW.com and The Dallas Morning News, author of Drunk on Sports and panelist on ESPN's Around the Horn, answered your questions about the Cowboys, Rangers, Mavericks and local college sports in a live chat at Thursday. Here are some highlights.

Is the Big 12 really this "Titanic" sailing toward its doom that many are making it out to…