I don't see how it would be possible to block the transfer market in an efficient way to stop what happened to you
No need to block the TL. A viable workaround would be to generate new draftees as 17/18 yo and then let them age together with all other players.
That said, I like it as it is now. Creates opportunities.
BBB: 2 (S37 S38); Top tier: 7 (S35 S36 S37 S38 S39 S41 S63); Cup: 9 (S25 S35 S36 S37 S38 S39 S40 S41 S61)