In a move to get younger, the Falcons on Tuesday decided to release veteran starting defensive tackle Grady Jackson.  The 11-year vet had just gotten an extension before the season, but after an awful 1-6 start it looks as if the Falcons will be trying to go in another direction for the final nine games of the 2007 season.  Jackson had 13 tackles for loss this season, with one sack.  The move to dump Jackson makes way for sixth-round pick Trey Lewis to know be the starter.  Lewis (6-3, 320) has 15 tackles. He made two starts when Rod Coleman and Jonathan Babineaux were held out with knee injuries.