You could probably more reasonably argue however that rather than coming into his prime he's regressed and is now depth after being best 22 at the start of the year. We'd be doing very well to get anywhere above a third rounder.You can make an argument that he is worth a 2nd rounder. Multiple BOG performances, top handful in the Brownlow for the Dogs, coming into his prime and bolstering an area that Saints are shallow in.
He could be a very handy pickup for the Saints, or he could continue to stagnate. That's why they wouldn't want to give up much for him.