I know De Ligt, is very talented and possibly a generational CB, but I would have been devasted if missed out on De Jong. As in yeah, we got De Ligt but at the same time, I felt that wasn't worth the trade-off.
It's becoming easier and easier these days to spot very good CB prospects. With CM's like De Jong, and his skill set is pretty rare these days and there's no guarantee there's one that will become available and with the potential as someone like De Jong.
Glad to have both Arthur and De Jong.