Why do you say to bet AGAINST a team instead of saying to bet FOR their opponent?

When we analyze a trend for a team, it very often has no bearing on their current opponent. If "Team A" statistically loses on the Moneyline when playing on Monday on the road, the trend is to bet AGAINST Team A. It doesn't matter that they are playing "Team B".

What does the number of units mean?

Units represent how many betting units a player would be above or below if they had wagered 1 unit on the specified team in every game that conforms to that trend. In games where the recommendation is to bet AGAINST a certain team, the units show as "minus" since units are calculated as made bets FOR that team in the given scenario. So as long as you're betting AGAINST that team, a negative number is actually good.

How is the Powerline Edge calculated?

The Powerline is based on recent game results and is used to compare the relative strength of the two teams involved. A power line is calculated using both teams ratings and home field advantage. When the power line differs significantly from the current line, that's a Powerline Edge. If the favorite opens at -125 but has a Powerline of 181, that team would have an Edge of 56. If a team opens as the underdog, at +115 for example, but that team is a Power Line favorite, at -111 for example, that's an Edge of 26.