Well i think that the 100T income from a platinum asso + daily greens are good enough to play a good season ( especially if you have a good team already ). It also depend on the way you play cause if you manipulate the season by selling some player at the end of the season you will need less resources instead the harder way ( finishing the season over 120% Q) will demand more resources according to the goals you want to reach ( double, trebble or quadruple ). So the difficult part is the beginning , building a good base, but after that is not hard to maintain it.