I have become quite familiar and fond of the so called backwards way of looking at NFL spreads. Im not sure in the slightest whether i am correct here but upon looking at the Ravens vs Dolphins spread, my initial thought was that the Ravens would kill the Dolphins and i guess a lot of people believed the same. They'd have seen the -3.5 on offer and jumped on the price probably even taking the juice and buying -2.5. The bookmakers appeared to want money on the Ravens as perhaps the sharps had been all over the Dolphins +3.5.
There was no reason to believe that the Ravens would "kill" the Dolphins, for these reasons;
-Miami have been poor, but many of their defeats have been close calls, that could have gone their way.
-Baltimore have had a poor season themselves and are no offensive juggernaught by any means, so any win they have is usually a close one.
-Injuries on Baltimore D leading up meant that you had to take into account this isn't your Baltimore D from recent years.
I would have picked Baltimore to win the match too, and had Billick not made a horrible decision to tie the game instead of go for the win from the 1 yard line (when they had absolutely nothing to lose as far as their season was concerned) at the end of the 4th Q, then they may well have.