Army’s defense was a struggle at times last season. They allowed 24.3 points per game, but the ability of their offense to keep them off the field was a saving grace. They return only five starters on defense, and unless the offense shows the capabilities to keep their counterpart off the field, it will be a long season once again.
The other one is ESPN's blue ribbon Army preview with full pages dedicated to offense, defense, special teams, newcomers to the team and a season analysis. This is one of the more in depth online previews and you would be well served to check it out.