I hope he manages to bring some decent coaches to the club in the next couple of weeks. I doubt Phelan and McKenna will be much help to him in implementing his philosophy.
Phelan doesn't even coach anymore -- his role was that of the wise, old head on Ole's team. Mckenna -- he will probably learn more from Rangnick than he would be contributing to Rangnick's teaching philosophy -- which would explain why he wants to stay.
Rangnick will need at least 2 of his own handpicked assistants who subscribe to his philosophy for him to be somewhat or minimally effective in view of the packed schedule for the next 8 weeks. Otherwise, it would be only half-baked or partially pregnant.
If he is only partially successful, he wont have enough credit in the bank to make organisational changes ie off the pitch which is his remit for the 2 yrs beyond coaching.
This is why I suspect that he will stay on as a manager/coach to make sure he gets what he wants implemented. Then with that, he will move upstairs. The term 'consultant' is a political term agreed upon by the CEO/Glazers and Rangnick to pacify any organisational resistance to change -- and so to buy him time. So I suspect the Glazers & the CEOs have seen this as a 'project.'
No guarantee for success despite favourable or impressive resumes. We can look at the Scousers and Klopp but how many failures did they suffer before having one that is a Klopp? Arsenal may go through the same journeys of false dawns too.
Give the Glazers some credit -- its clear that they hired Moyes, LVG and Ole as mid to long term projects. Jose was the only short term project with the simple remit of winning trophies. No fans of top clubs have the patience for mid-long term projects. They need their crack-cocaine of football, silverware/trophies -- whilst many owners want sustainable success, both on & off the pitch.
Treading that window/fine line (of sustainable success and short term goal of trophies) is the mission impossible.
Yet, other than the Chelsea project, historically, it's a crapshoot trying to hire 'right' people ie looking for the Messiah.
Or maybe the Chelsea model is what we need to develop? If so, is that who we are?