Let me start off by telling you that McDaniels comes from the Parcells coaching tree, a coaching group marked by discipline and excellence. He comes from the Bellichick Branch, which is one of many. McDaniels attempted to create a Bellichick roster, which stems from a Parcells roster. He did the same with the coaching staff. A non-Parcells coach could scrap McDaniels rebuilding process and start his own. That is why Fox could complete McDaniel's unfinished work the Pat Bowlen disrupted. Fox is keeping much of the coaching staff and roster intact, this includes the McDaniels aggressive offensive style. Mike McCoy is most likely the head coach in waiting, and would lead the team post-Fox. Studesville is the OC in waiting and would keep the McDaniels offense in Denver for years to come.
Conclusion: Let's look at all the players that McDaniels brought in or developed that should have an impact next year:
McDaniels created this and a coaching staff, so let's go along with his plan because of this, if we went into the rebuilding mode it would take 5-7 years to make this team a real juggernaut contender. I think all of us Broncos fans should let go of Rick Dennison and the old days.