PFT Live: Shanahan to give RGIII a break?

Mike Florio takes call and tweets from PFT Planet who want to know if Mike Shanahan should rest Robert Griffin III after suffering a Grade 1 knee strain. Fans also want to know if the Chiefs have interest in signing Michael Vick or Alex Smith this off-season and if the Bills would be better off drafting a QB instead of combing the free agent market.