For a team that is already guranteed a starting position based on ownership points there really isn't much of an incentive unless they qualify on the pole for the extra points. Qualifying times set the starting positions for the Gatorade duels, odd number quals in 1 duel even number in the other. The top two drivers in each Gatorade Duel that are not already guaranteed a starting spot get into the Daytona 500.

The next three spots go to the fastest three qualifiers based on the single-car time trials from Sunday.

The final spot is guaranteed for a previous Sprint Cup Champion who was unable to qualify any other way. If there is no unqualified past champion then the 43rd spot goes to the next fastest qualifier based on speed from the single-car session.
So Waltrip, Nemecheck,Reutiman and Kvapil are going to start the 500 based on qualifying time, the last 3 assuming they don't transfer from the duels. I am guessing anyone From Jarrett on back will have to make it through the duels.