Excpet Judd does not want to play for Richmond. They weren't even one of the four original clubs he shortlisted. If West Coast try to trade with Richmond then Judd will probably refuse and opt for the PSD.
West Coast either accpet the offer of 3, 20 and Kennedy/Bower or they lose Judd to PSD.
If Judd goes to the PSD Richmond would be foolish to draft someone who does not want to play for them and give them a million dollar contract in the process
Problem is, you and a lot of other people are assuming West Coast would be afraid to do that if worse came to worse. They're as shrewd as shrewd when it comes to this business. They will obviously try to get a deal done, but think about it. They're losing Judd anyway, and even without him along with Geelong probably still have the best midfield in the comp. They don't have anywhere near as much to lose as some make out they do.