When you sell players do the end up in the transfer market from your level?
If that's the case then I'd rather let those players go, I always try to sell the lowest quality players they never get bought. I guess when they end up in the transfer market a level below it could be different.
I will sack them only for making space or fool opponents making the team average stronger
But seriously is there any one who can confirm that players could end up on a transfer market with lower level?