49ers seek to capitalize on championship window despite recent setbacks

ers have fallen short of Super Bowl despite talent-laden roster in recent seasons
Late-game mistakes and QB injuries have hampered 49ers' Super Bowl aspirations
Aging roster and expiring contracts signal closing championship window for 49ers
Health of key players like Purdy, Kittle and Bosa crucial for 49ers' playoff run
ers look to build on roster strengths and avoid late-game errors in 2022-23 season