I´m not sold on the "train to sell" concept. Training should also be considered in its teambuilding importance.
Buying a 19year old at some point, training them for 8-10 weeks, selling him for a medium profit, as it was in the old days, is not exactly what it´s supposed to be either.
With the new importance of "intelligent" training (keeping the wages low, yet making the player useful and maybe special) making profit is not impossible, just more challenging.
I consider "optimized" training and a better use of B-Skills and Tactics the real challenge of the economical development. Instead of just "printing" money, you have to find ways to utilize skills, player material and handle the tasks of managing the teams salaries. Any manager simulation should consist of analysis of a development and finding the correct response. BB is a dynamic simulation, not static. You have to adopt your strategies then...
Zwei Dinge sind unendlich, die Dummheit und das All...