By Tyler Amaral NEFJ Correspondent Division 5 The field: 1. Shawsheen Valley 2. Gloucester 3. Watertown 4. Swampscott 5. Northeast Metro 6. Norton 7. Foxborough 8. St. Mary’s 9. Greater Lawrence 10. Apponequet 11. Medfield 12. Hanover 13. Auburn 14. North Reading 15. Blackstone Valley 16. Oakmont The favorites: Shawsheen Valley, Watertown The sleepers: Foxborough, Greater Lawrence Best first round matchup: Medfield at Norton Players to watch: Quinn Carbone, DB,...