Looks/Reads like the first of many airline consultant's "detailed" analysis of the Southwest/AirTran merger. Lots of information available on the link below (1st 25 pages of the 30 paged link). I've always liked the Boyd Group and I believe them to be the best airline consultant firms in the industry. Apparently, they've done work for Southwest in the past. Lots of number and opinions (like MKE being eliminated as a connecting hub)
http://www.aviationplanning.com/Images/BoydGroupSouthwestMergerReport.pdf
http://www.aviationplanning.com/Images/BoydGroupSouthwestMergerReport.pdf