After 11 straight losses and another lost season, 49ers ownership is open to significant changes just one year into its latest coaching/management regime, league sources said, with longtime general manager Trent Baalke in jeopardy of losing his job and coach Chip Kelly hanging in the balance as well.

It would be a surprise if Baalke was retained, though he has deep ties to owner Jed York and has been viewed as a loyal and trusted employee. The 49ers' roster has fallen into decay after years of suspect drafts and free-agent decisions, and the franchise is under intense fan pressure to make some changes.

Several NFL owners believe Jed York's parents, Denise and John York, will be taking a more hands-on approach with the team as they determine how to reposition the franchise, and Mike Shanahan, who has been under consideration for coaching openings there in the past, could join the 49ers in a coaching and/or executive capacity. His name continues to be connected to potential openings there, and the Yorks have spoken to him in the past.