but the Cowboys revenue has been pretty remarkable
I don't know how old you are but I can tell you that the Cowboy's revenue has always been in the top 1 or 2 in the league from the get go. It was Don Meredith, Craig Morton, Roger Staubach, Tom Landry, Walter Garrison, Tony Dorsett, Calvin Hill, Too Tall Jones...these are the guys who created the "Brand" and the revenue that goes with it.
Again, your logic is less than perfect and here's why: Dan Snyder may well be considered the worse owner in the NFL. He has done nothing but create one screw up after another and, yet, the Redskins revenue is always in the top 3 in the league. Is that because Snyder is such a great businessman, or because the Redskin have history?