I apparently live on a different planet.
On the planet I have lived on, the Cowboys have spent a good bit of the past 25 years in cap hell. They frequently have to let players go that they wouldn't otherwise, like Jones just this year. Many years they can't even think about bringing in competition for spots because they are hamstrung with the cap. Free agency is a fairy tale that cowboy fans tell their little kids exists in bed time stories.
if Jerry had no cap, I think it would be stunning what would actually happen. He would spend like the Yankees used to, just buying up titles every year or at least trying. He would never let anyone go worth a dam and he would sign the top free agents every year or take a run at them.