I believe many factors come into play
For Marion:
1) Dominate on both sides of the line
2) secure the edge
3) make 1 on 1 tackles
4) no turnovers
For South Pittsburg
1) Limit penalties
2) pass coverage
3) limit big plays to Riley, Shoemaker, brooks, and walters (blake will get his regardless)
4) negative plays/ turnovers
Have seen Marion play 5 times and SP 3...give Marion the coaching advantage with that said I predict Marion comes out on top 35-33. The reason being Zeman is hungry, the fans are hungry, and Mac really wants this one im sure. Good luck to both, praying of course for an injury free and sportsmanlike game from both teams