I somewhat disagree. Stats do tell the truth. But looking at only 1 number, or 1 stat doesn't always tell the "WHOLE STORY".
"Points Allowed" is generally more important. However, "Points Allowed" does not capture poor play by the offense... ie. AJ Feeley interceptions returned for Touchdowns, poor field position etc.
"Yards/game" is usually less prone to errors caused by a lousy offense. However, this stat shows its errors with the dolphins.
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Basically, the D-line is playing well, causing other teams to use a short-passing game on us. (Opponents are using a dink-and-dunk offense like us). This is a high completion % offense. The d-line, and the poor competition has allowed our secondary to not be fully-exploited.
On a positive, the secondary is not allowing for RAC. However, they are not defending passes either. Renaldo Hill has 0 passes defended in 6 games. Is he really starting? 42% 3rd down conversion is abysmal.
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In the case of the dolphins, the "points/game" stat of "18th ranked defense" seems more true than the "4th in yards/game"