Yeah , way too complex and time consuming as already said by others. The average punter playing this game cant get a grip on the game as it is.
Really all that needs to happen is Nordeus restore Negotiations to all season and I would make 1 change to it , which would be to allow managers to nominate the players that go on negotiation market. That way real negotiations would happen between managers who are active. Probably get rid of the hidden 2 token cost for changing a bid as well.
There are a lot of things that could be done with youth players but to keep it simple I would allow managers to request a type of player and/or any SA. Pay a premium I guess of an extra 5 or so tokens for these players , rough cost 15 -20 tokens.