If Juve bring in Calafiori to pair with Bremer (assuming he has no intensions of leaving), I have no problem selling Huijsen. He wouldn't play at all next year and would likely just go out and loan for the next year or 2 until they ultimately sold him anyway.
If you can sell him now to help fund midfield signings, I completely get the logic.
Selling Soule when we're about to switch to a 4-3-3 type lineup with 2 wings would be a bit disappointing --- just because that is a position of need with essentially no depth. Going into the transfer making knowing Chiesa, Yildiz, and Soule will be on the team next year makes it a lot easier to not panic about signing wide players. If Soule is sold, we either need to sign 2 players, or keep Iling-Jr and count on him to play regularly at LW.