SANTA CLARA, Calif. – The San Francisco 49ers run a notoriously secret ship. Not a lot of extra information is floated out, per the way general manager Trent Baalke and coach Jim Harbaugh want to run the organization.No distractions.Yet, there is a chance the team may be forced to participate on HBO's "Hard Knocks." The widely popular summer series follows an NFL team through training camp. The NFL has mandated rules that make teams have to appear under certain situations.