RENTON -- Leroy Hill is in his seventh season with the Seahawks and the move to put Marcus Trufant on injured reserve leaves Seattle's weakside linebacker the longest tenured Seahawk on the active roster.

He has played 73 games for Seattle. Middle linebacker David Hawthorne is in his fourth season season, and he has played in 50 games.

In a sign of just how much Seattle's roster has changed at linebacker, every other player at that position is in his first year on the team.

That includes rookies K.J. Wright and Malcolm Smith as well as the trio signed this month: David Vobora, Heath Farwell and Stephen Franklin.

So what does the depth chart look like after the trade of Aaron Curry?

"Guys are interchangeable," said Gus Bradley, Seahawks defensive coordinator.

Wright is the starting strongside linebacker and also the backup middle linebacker. Hawthorne has started both in the middle and on the weakside. Vobora can play both weakside and strongside linebacker, and for right now, expect him to be the first one off the bench if there's an injury.

"Vobora is really sharp," Bradley said. "He could play SAM (strongside) or he could play WILL (weakside) so until we get Malcolm back and get these other guys, I think you'll see something happen, just interchanging."

Smith, the rookie, is coming back from a hamstring injury, and he's playing weakside linebacker.