United must 'transition into something new', says Chief Executive Julian Winter.
Since returning to the post, Winter has stressed the importance of United being a sustainable business and insists the summer months will be crucial.
He said: "This summer we have an opportunity to become more sustainable, we need to get our act together and create a platform by thinking differently.
"We need to think outside of the comfort blanket of having a benefactor; we need to think positively about what we have on the field, particularly our young, home-grown players.
"Recruiting the best young talent within our financial model is crucial moving forward, so the new manager will be a pivotal part to the jigsaw puzzle. We need to look at the situation of another season in League One; perhaps we need a change in culture and have a transition into something new."
Winter also revealed that the playing budget will be cut from the season that finished recently, but is adamant that won't harm United's hope of promotion back to the Championship at the third time of asking, although he conceded players could leave if offers are received from clubs higher up the football pyramid.
Looking ahead, the Chief Executive added: "Naturally the playing budget will be less than last season. We have had the biggest budget and the second biggest budget in the last two seasons and not won promotion.
"Is it all about money? At the top level it is. When I came here initially the key objectives were to become sustainable and get the Club promoted. My attitude is that is still possible, it isn't about having the biggest budget.
"I can't guarantee anything at all, every player will find his place and if there is serious interest in any of our players from a higher level, the Club will have to consider offers.
"We want to create a squad that is competitive and has a real identity, so obviously we want to keep our young players, but you can't guarantee anything."