Positions 49ers must improve to overtake Seahawks, Rams in NFC West next season

The Seattle Seahawks and Los Angeles Rams were the two best teams in the NFC — perhaps even the entire NFL — this season.And with a 12-5 record during the regular season, the 49ers were not far behind.Seattle is moving onto Super Bowl LX, where it is a 4.5-point favorite over the New England Patriots. The Seahawks advanced with a 31-27 NFC Championship Game victory over the Rams.The strengths of Seattle and Los Angeles provide strong indicators as the 49ers set out this offseason to make the necessary improvements to make a run in 2026.Here are the areas in which San Francisco can make the most-impactful improvements next season:Edge rusherThe 49ers figure to get Nick Bosa and Mykel Williams back from their respective ACL surgeries. But they need more. They need a lot more.Seattle and the Rams have young, deep, dynamic defensive linemen. Both teams registered 47 sacks on the season.The 49ers had the worst pass rush in the entire NFL. They recorded just 20 sacks on the season. If Bosa returns to full strength, he will definitely help. Other than him, the 49ers have nobody. Clelin Ferrell and Bryce Huff led the team with just four sacks apiece.Williams should be a good...