As fantasy owners, we face the dilemma nearly each week ? two mediocre quarterbacks not knowing who to start? a trio of powerful running backs or receivers, yet the league allows only two in the starting lineup. In the end, we set our lineups and pray to the fantasy gods that we've made the right choice. However, knowing your match-ups is key, which means looking at the stats is a must. FIO co-founder & editor Matt Hinzpeter takes a look at a few team defenses and how they've held...