I believe Farmer would be above Xander in that arrangement. Either as GM or Czar.
Is there a relationship there? Do they know each other? Xander would really have to want to get out of Detroit to take that position I think. And I don't think a Czar is a good idea...there needs to be only one person picking the players. Too many hands in the mix and you lose clarity like when Parcells and Ireland were here together.
Xander has the experience and track record over Farmer. I'm not sure about the personality because there seems to be conflicting reports about Xander out there but I'm OK with someone who may rub people the wrong way as long as he can pick talent. There have been plenty of GMs that were like that...A.J. Smith former GM of the Chargers comes to mind...he could pick some talent...he was just too stupid to keep it. He would rather see talented players got huge contracts elsewhere so he could recoup 3rd round compensatory picks.