The lines should go like this IMO though.
Line 1: Top scoring line - Richards, Lecavalier, St. Louis. (Since that's the Tampa Bay line, and they singlehandedly stopped the Flames from winning the cup like 2 years ago).
Line 2: Secondary scoring line: Gagne, Sakic, Iginla. (Sakic and Iginla have been on a line before, and Gagne's scoring and ability to find the puck in traffic and make something outta nothing should make this a good second line).
Line 3: Grind line: Heatley, Thornton, Nash. (Put Nash back in since he can score, Heatley is a good scorer too and Thornton is a good face-off man and a good playmaker, they can also kill time for the top 2 lines to rest, etc).
Line 4: Checking line: Smyth, Doan, Bertuzzi. (3 guys who can play hard, scrappy, go after loose pucks, take guys off the boards, cover the net, creating scoring chances that way).
The 1 guy I would bench is Draper, as I think he doesn't belong on the team, let alone a spot on one of the lines.