Wouldn't that be quite a sign of a cohesive organization? The GM and manager plotting to undermine ownership. That type of dysfunction leads to a GM resigning in disgrace, a team president walking away and taking pot shots at his old club, and a manager quiting on a winning team.
Ownership had nothing to do with Bowden and Riggleman leaving, in fact, I'm certain the owners are the only reason these guys were even employed by the Nats in the first place. Bowden and Riggleman made their own beds, particularly Riggleman who is just an idiot.
Kasten is something else entirely though and more comparable with what you're describing. I think it's safe to assume that Kasten and the Lerner's had different agendas. Though, it's not likely I'll ever shed a tear now that Kasten is gone.