Why does Jerry Jones need to explain anything? If he wants to change the franchise, he'll change it. It's his family bidness, so he can do what he wants.
Do you think the owner of the corner deli needs to explain why he changed the sign on the front, or why he fired the counter guy? No, it's his bidness ... so mind yours.
If you don't like the way the franchise is run, then go find another team to root for. The team belongs to the Jones family and they can do as they please. Nothing you can do to change that ... so why bother?
He's the greatest owner in sports history. We're very lucky to have him. Look at the Super Bowl trophies he's brought to us.
He just wants to win.