One way of Paul Warne being accepted has manager by the fans, could be a experienced manager coming in, acting has his mentor & director of football, who would advise the technical committee on transfers etc.
One man could be John Ward who has the experience of working with some top managers.

Personally I don't want Paul Warne has manager, two managers worth a shout to me are, John Ward & Chris Powell.

Another thing with clubs buying decent players out of the conference league, shouldn't the Millers had a word with Ronnie Moore, who managed Eastleigh, who surely should have taken note of any decent players, for the club to buy.