Jerry Jones is the NFL's clearest example of an "all-in" owner and makes no apologies for it. In fact, he clearly believes other owners should be equally invested, especially on the business side. I witnessed owners' meetings in which Jones chastised fellow owners whom he believed were collecting their share of league revenues without actively marketing their brands.
The same qualities that make Jones a formidable presence as an owner -- his bravado, charisma and emotional as well as financial investment -- are detrimental to his position of general manager. That role calls for a quiet, detached and surgical construction (and perhaps deconstruction) of a team's roster.