A lot of different factors can explain Newcastle's drop in points year on year: Scoring%, regression, an increase in goals conceded and fewer goals scored are just a few (more on this in the next fan post) but one big factor was Newcastle's average minutes spent at the basic game states.
Time Spent W/D/L 2011/12
This is quite a good chart: over 30 minutes a game spent winning, less that 20 minutes a game spent losing. These are good numbers and Newcastle's minutes spent winning trended nicely all year.
It's a positive chart. 2012/13's is not a positive chart.
Time Spent W/D/L 2012/13
Newcastle's minutes spent winning has dropped significantly, the minutes spent losing has risen too. In fact minutes spent winning and losing have completely reversed from the previous season.
Newcastle went from a team who spent a good amount of time in control of their games and in a positive game position in 2011/12 to a team who spent far more time chasing a game than controlling it in 2012/13.
The chart below shows a monumental swing from minutes winning to losing year on year.