That Last game vs Atlanta may determine the division/playoffs

May or may not. Unfortunately, I believe the Bucs are going to represent the south this year. We may have the easier schedule of the 3 teams, but the Saint's as well as the rest of the NFC south haven't proven they can win on a consistent basis. However, Tampa and Atlanta have already beaten the Saints. So they know they can do it again. And after the Saints, the Bucs have the next easiest schedule if I remember correctly.
The Bucs have GB and Jacksonville. They might be out of it by the time they play the Saints.