Plan suffers if Carpenter's injury serious

Rookie right tackle James Carpenter needs the Seattle Seahawks' remaining seven games, plus a full offseason, to speed his development.

Will he have those things?

The knee injury Carpenter suffered in practice Wednesday deals a potential blow to Carpenter and the team's plans for a young line to grow together during a building season. Those plans took a hit Sunday when rookie right guard John Moffitt suffered a season-ending knee injury. The team plans an MRI for Carpenter and will not have additional news before Thursday.

Losing Carpenter would not hurt the team on the field in the immediate term, in my view. He and Moffitt were working through the normal rookie growing pains. A switch from Carpenter to Breno Giacomini at right tackle might even help the Seahawks' pass protection against the St. Louis Rams' Chris Long in Week 11. But any game the Seahawks play without the rookie right side of their line sets back the long-term plan.