I listened to it.
My criteria for worst contracts is (in order of importance):
What players/contracts need can only be traded while giving up extra compensation?
What players are performing poorly relative to their contract?
What players would have the smallest market demand if they were on the trading block?
What players are an injury risk?
Simmons, of course, is #1. The Knicks couldn’t give Fournier away. Duncan Robinson, Hardaway Jr., Bertans, Tobias, CP3, Collins, etc. fit the bill to a certain degree.
The market tends to overlook injury risk (like KD). Even with Zion’s injury history, I would be surprised if he didn’t have more trade value and a bigger market than Trae Young.