49ers mailbag: Don’t blame sub-par run game on electrical substation

SANTA CLARA — The 49ers have closed shop on the 2025 season, but we’re keeping our social-media mailbag open to answer The Faithful’s outcries:

What happened to the run game this year? Shannahan was so good at it. Was it personnel OL/RB? Desire or need to use Purdy more? (@gonzal7757)

The 49ers averaged under 4 yards per carry for the first time in 20 years. They averaged 3.8 yards per carry overall, and Christian McCaffrey was kept to 3.9 ypc., his lowest mark in a full season as a starter.