Yes, Nick Mullens imploded. But others aren't off the hook.
Should the 49ers sign Kirk Cousins if he's available next year?
Joe Staley is just as upset by the 49ers' first half as you are – KNBR
49ers News – Page 134 – KNBR
Former 49ers tackle Joe Staley identifies the one thing that still
49ers Sign T Joe Staley to Two-year Extension
KNBR – Page 779 – The Sports Leader
49ers news: Joe Staley is a coach in the making - Niners Nation
49ers news: Joe Staley highlights 2 adjustments the 49ers made
49ers News – Page 64 – KNBR
49ers All-Pro tackle Joe Staley announces retirement - Martinez
49ers-Bengals film session
49ers News – Page 159 – KNBR