The issue that is that it is so damn ignorant to say such a thing. Beason is a true warrior and the guy talking this crap probably hasn't even played a down of back yard football in his life. It's not that some players are actually terrible and get traded. It's that this is a former all pro fallen due to injury.
The way it is said also speaks ill of the Panthers. The Panthers would never in a million years consider Beason trash.
He's not that good anymore...I know it is sad to see it written by a Sports Illustrated journalist, but then again maybe I would have to play a down of backyard football to understand that true warrior spirits are what win football games lol
But seriously, to clear up your confusion---Beason's weak-sauce play for the Panthers could be turned into productive play for the Giants...... which would most certainly warrant the usage of the idiom: "One man's trash is another man's treasure"
Idiom (noun) - a group of words established by usage as having a meaning not deducible from those of the individual words.
Meaning that the usage of the word 'trash' in the expression is not to be taken by its literal definition.