That competition won't happen as the Seahawks have announced that they've traded Jackson to the Lions for an undisclosed 2011 draft pick.
Interestingly, Balmer was drafted directly after Jackson in the 2008 draft.
The Seahawks gave up a sixth round pick for Balmer so it's possible they acquired another late round pick in the Jackson trade.
SB Nation's Pride of Detroit passes along word that the 270-pound Jackson will apparently play defensive end.
Agent confirmed -- Lions acquire DE Lawrence Jackson for 2011 draft pick. Lions real worried about DeVries' knee and lack depth at DE.
At his size, some wondered what position he might play.