Pogue Mahone
Swiftie Fan Club President
I dont ignore his first 2 years but where he played in 2006/7/8 (or before) is not so relevant to the point I am making about becoming progressively more and more defensive post 2008 because the entire team, tactics and dynamic changed in the meantime (and after).
Re: the graph - There are 2 lines in the graph and you seem to be ignoring the red one (The Team) and just focus on the blue (Carrick).
In 07/08 eventhough Carrick moved forward, the whole team moved forward. A stark constrast to 08/09 where the team continued to move forward yet Carrick was pushed in the opposite direction, this to me shows a complete change in his role in the team. The year after the team did move back a bit but Carrick was pushed deeper at an even faster rate. It is absolutely clear on the graph and I find it quite strange that you cant see it and just call the years that dont fit your view 'an anomaly'!
What Jol says there was true at the time but I note that he does not say anything about 'sitting deep and protecting the back four', that is just what you have inferred and added in - regardless it is pretty irrelevant now because that was said before he started his conversion to a predominately DM in 2008/9.
In 07/08 his position was identical to the previous season (relative to the rest of the team he actually dropped a lot deeper).
In 08/09 he advanced his starting position by a greater amount than the rest of the team did, as compared to the previous season.
You're having a shocker here!
EDIT: although I think I know where you're going wrong. You seem to think the data is continual, rather than point summaries for each season as a whole.