Management is about arranging and telling. Leadership is about nurturing and enhancing.
Vision is dandy, but sustainable company excellence comes from a huge stable of able managers.
Inspiring visions rarely (I'm tempted to say never) include numbers.
Effective visions are lived in details, not broad strokes.
Don't let the vision be shot through with holes, but be damn sure some of your best and brightest are shooting at it -- with bazookas as well as sniper's rifles.