Here's the problem with Cuadrado.
I'd love to have him back as the backup RB at a lesser salary playing a role similar to Bonucci this year. He'd 100% be a backup to a new signing for RB. He'd be more than capable in that role.
BUT, we all know if they bring back Cuadrado, they'll probably be too cheap/selective in the transfer market, not sign anyone, and just roll with Cuadrado and De Sciglio for next year.
I'd rather management not have the crutch of Cuadrado to lean on when going into the transfer market and looking for a new starting RB. Cuadrado leaving would force them to prioritize that position and not F around.