Well, my evidence on Monte is he got fired 2 months after "making" a franchise altering move by trading Fox for LaVine and picks. If that was Monte's decision and Vivek was on board with the vision, why would he have been fired? Why wouldn't he have been allowed to continue and finish his vision?
The alternative is Vivek let Monte make one of the biggest deals in franchise history as a lame-duck GM. Which is patently insane, if true and we're in bigger trouble than we think if that's impulsive he truly is to "trust" Monte to make that trade and then fire him for the decision in 2 months.
Christie may have been getting some direction from upstairs as the interim HC, but I think the nature of him getting the full-time tag, at least right now, suggests he's in control of his own decisions. Again, the alternative is that Doug was only hired to be a puppet of who Vivek wants on the floor, which is a terrifying thought in itself and we'd just be truly lost as a franchise if true