"We have the funds we need to do what we need, but there will need to be some trade-offs because of (profit and sustainability rules)," Marathe told BBC Radio Leeds.
"It is not just outs, it is ins as well, looking at scouting possibilities, but we need to make trade-offs. I can't talk about specific players right now, it is too early.
"There are certain things we need to do and we will make sure we are fully compliant with P and S (profit and sustainability) as we always have been. We'll have to get back to the drawing board and see what deals we need to do."
Marathe also insists they're counting on manager Daniel Farke next season.
"Daniel has been fantastic, I'm excited about working with him next season," Marathe added.
"We had a long-term plan, a long-term commitment; we have to see it through.
"He has the right temperament. I feel confident because we have a four- or five-week head start on last year at least."