Franzen's out until around March. I dropped him about 3 weeks ago and he is still in the FA pool (12 team league). If I have plenty of allowed moves I may grab him when I have a free IR spot or two, but I can't imagine anybody trading for him. Drop him and look to pick him back up when you have roster room. With all of the big name injuries, my bet is most of your league's IR spots are full and nobody will even take Franzen from waivers.