Unless Toronto gets one of the top dmen prospects in this draft with an acquired 1st in a deal for Knies, I don't think he gets dealt before July 1st.
Given the Dreger news, but also the obvious news for a few weeks now that Toronto will go hard for Raddysh and likely view him as the number one.
Should they miss out, then i imagine they go down the path to trading Knies for a dman who can play now.
If the Leafs sign Raddysh and they're still looking to trade him, then it must be to fill a hole somewhere else and get futures so they can make additions at the deadline, or if Chayka is smart, semi long-term fixes in areas of weakness throughout the season to keep the window open and Matthews happy that the team is competitive.