Содржина: Would it be a "good" idea

Here is the situation

I'm currently in league III.4

I'm still far from the top in my league and I'm always reluctant to buy new player from the market, since I prefer to train my own player. It's not the best strategie but since my facilities are getting better it's finally starting to pay off

since I still have no chance to win in my league, best I can do is probably 5-6th place would it be a good Idea to put sale my imported player and give experience to my own player?

I could gain about 10 to 20 millions dollars by selling imported player, this money would help getting even better facilities.

The worst that can happen is I get relegated to IV league, but I know I'll be back in league III the season after, with a lots of my player strong enought to compete with the tops

So is that a good Idea or is that plain stupid?

Really it is your own decision. If you want to roll an all homegrown team then all the power too you.
On one hand it is a gamble to solely depend on your SA. Unless mikpj told you his secrets to pulling players. Most managers go multiple seasons before pulling one stud player.
On the other, if you can compete with only players you have produced then you should. If they are guys you plan on rolling with in two-three seasons from now then getting them exp asap will definitely help. Plus the money you can generate from sales could buy you another facility upgrade then even better,

next season will be my 4th one, I already have a base of 6-8 good home base player that ar currently not playing that will be next season.

I think I answer my own question, If I want to make them play I have no other option than to take some player off from my roster....