I would go:
PG: Polk, Paddock, Behrens, Graham
SG: Graham, Paddock, Jones, Behrens
SF: Eriksen, Paddock, Jones, Grandison
I would also move Jones into the starting lineup at either SG or SF any time you run into a team with a dominant scorer at either of those positions. A team with a dominant scoring PG is going to be more of an issue for you. If he's really good (25+ ppg) you could go with Jones. Or leave Polk in but double team.