You might question the wisdom on trading the #1 WR from last season to your biggest rival but the Seahawks did that because they could. They think they have more than enough depth to carry on without Darrell Jackson who is now an enemy 49er. The Seahawks are banking on Deion Branch stepping up and being a true #1 guy in the offense. He played in 14 games (13 starts) last season for the Seahawks and he caught 53 passes for 725 yards (13.7 avg) with 4 TD grabs and he also ran the ball 4 times for 30 yards (7.5 ypc). I am predicting right here that Deion Branch will have a career season as long as Matt Hasselbeck starts all 16 games in 2007.  Branch has now played in 67 games (55 starts) in his NFL career and he has caught 266 passes for 3,469 yards (13.0 avg) with 8 TD grabs and he has also carried the football 7 times for 41 yards (5.9 ypc).
D.J. Hackett played so well as the Seahawks #3 WR that he is the reason the Seahawks felt they could trade Darrell Jackson.  Hackett played in 14 games (5 starts) last season and he caught 45 passes for 610 yards (13.6 avg) with 4 TD grabs.  Look for Hackett to catch at least 60 passes this season and approach 1,000 yards. He has now played in 27 games in his NFL career (8 starts) and he has caught 73 passes for 1,010 yards (13.8 avg) with 6 TD grabs.
Bobby Engram is the likely #3 WR for the Seahawks this season. He played in 7 games (6 starts) last season for the Seahawks and he caught 24 passes for 290 yards (12.1 avg) with 1 TD grab and he also carried the ball 1 time for 4 yards. Look for Engram to continue helping the offense out.  He has now played in 142 games (89 starts) in his career and he has caught 504 passes for 6,054 yards (12.0 avg) with 29 TD grabs and he also has carried the ball 5 times for 19 yards (3.8 ypc).
Look for Nate Burleson to rebound after having a rough first season for the Seahawks. He played in 16 games (7 starts) for the Seahawks last season and he caught 18 passes for 192 yards (10.7 avg) with 2 TD grabs.  He was productive on special teams for the Seahawks as he returned 26 kickoffs for 643 yards (24.7 avg) and he also has returned 34 punts for 322 yards (9.5 avg) with 1 TD return. Burleson has now played in 60 games (40 starts) in his NFL career and he has caught 145 passes for 1,981 yards (13.7 avg) with 14 TD grabs and he has carried the ball 8 times for 43 yards (5.4 ypc). He has returned 28 kickoffs for 694 yards (24.8 avg) and 65 punts for 557 yards (8.6 avg) with 2 TDs in his career.
The Seahawks will bring along rookie WR Courtney Taylor slowly as their is no need to rush him with the veteran receiving corps that they currently have.