Irrelevant and not answering any of the claims raised.
The fact that this is what is written does not make it the right way.
When every team who this suggestion relates to find that they can save money by selling the staff at this time, the market will have a storm of staff firing, and then a storm of users buying new staff.
This is a fact and this fact will make it a wrong market definition.
As such, it is needed to be fixed and it is a bug.
That word fact, I don't think it means what you think it means. (Inconceivable!)
First of all, the amount of money to be "saved" is ludicrously small for the teams that would actually have some benefit from this, and would lead to staggering losses for many teams since they must replace the staff in some one to two weeks anyhow, with the signing bonus for the new staff member. If this were something that were exploitable, don't you think in some 20 seasons that it would have, you know, actually happened?
So, because some ridiculously improbable and stupid behavior could cause a "wrong market definition" (whatever that means!), this is a bug? For a bug to exist, a feature either must not work as described or
directly cause undesired side effects. This is, at most, a case where Pini feels the game is not properly balanced in a certain area, and now I suppose I should bring up why this solution could be a greater exploit than even your hypothetical mass hysteria.
Let's say you no longer pay salaries for staff in the offseason. Teams sure to finish fifth can, before the final financial update, buy a level 7 trainer with whatever ridiculous salary they choose before the training update of the last week of the season. They could hold said trainer for basically three full training updates and fire them before the economic update starting the new season and pay nothing (if you take the no staff salary literally to include severance) or at most one week's salary for 3 weeks of training. Do you perhaps think that *this* potential exploit would be seized upon almost immediately, while we're still 20 seasons in and waiting for the nickel and dimers to fire their staff for two weeks?
Please stop calling things facts when they're your opinion, please stop willfully ignoring the difference between a "bug" and a "suggestion" and have a wonderful evening.