3. No Excuses
The 49ers spent a great deal complaining about various nuances, ranging from poor field conditions to an idiot pulling the fire alarm at 6 AM. While the NFL set them up to fail, San Francisco didn't adapt properly.
The Vegas Golden Knights went through five different goaltenders last season, yet there was a next-man-up mentality. Heck, Jonathan Quick was acquired to alleviate the issue. While the former Los Angeles Kings goalie is enjoying a renaissance in New York, the Golden Knights wouldn't have won the Stanley Cup without Quick filling in.
The Niners need that same mentality and the same fire in that ol' belly of theirs. Whether it comes from a leader like Fred Warner or from Taco Bell, San Francisco must not make anymore excuses.