So you accept that we wouldn't need to replace Maguire. Your concern is that without Maguire we don't have enough quality in central defence.
This brings me back to Dunk. Are you saying that Dunk is of higher quality than our existing options?
What evidence do you have for this? Dunk is a kick it away, head it away type, who will be 28 this season and nobody else has ever considered to be a top central defender.
I'd pick Evans, Benkovic, Soyuncu and Morgan ahead of Dunk. They all offer more.
Which three of our remaining four do you rate Dunk to be better than to justify signing him?