Seattle's offensive line transformed from liability to strength during their Super Bowl LX championship run, and now faces its biggest challenge. The unit finished eighth in run block win rate (72.8%) and 12th in pass protection (64.8%), anchored by first-round picks Charles Cross and Grey Zabel plus the newly extended Abraham Lucas ($46 million).

Continuity defines this group's improvement. All 11 linemen from last season return alongside practice squad holdovers, with guard Beau Stephens adding competition at right guard. Coach John Benton staying despite offensive coordinator Klint Kubiak's departure to Las Vegas provides stability these young players need to develop further.

Myles Garrett's trade to the Rams creates an immediate problem for Seattle. The reigning Defensive Player of the Year set an NFL record with 23 sacks in 2025 and will face the Seahawks twice yearly. Despite Seattle's $104.4 million investment in Cross and available cap space, they weren't major players in acquiring Garrett.

The NFC West arms race just intensified. Seattle split with Los Angeles last season, winning the NFC Championship by three points total across both games. With Garrett joining the Rams, their Super Bowl odds shifted from +1000 to +1100 while Los Angeles moved from +800 to +600, reflecting the new reality for defending champions.