Steven Gerrard, King of the APEs

Attacking Possession Efficiency that is.  I haven't been posting much lately because I've been working on a lot of stats projects.  One of these is APE.  APE measures how efficient a player is in possession.  It takes in account all positive results from possession and gives relative value to these results and then divides this number by total individual possessions.  A goal is given four times the value of a completed pass and shot on goal, while an assist is given double value to a chance created.  Here is Liverpool's top ten APE from last season (the team APE was 0.43563):

Gerrard	0.46478
Henderson	0.46115
Skrtel	0.45314
Coutinho	0.45302
Suarez	0.45268
Johnson	0.44870
Lucas	0.44444
Sterling	0.43388
Sakho	0.42635
Sturridge	0.42570

Skrtel was more efficient than Suarez? Yes, because he did more with less possession and turned over the ball much less, which is essentially what this stat measures.

I also created a Positive Possession Result Quality, which gives value to the quality of positive result compared to overall 'stripped-down' results. The top ten PPRQ for Liverpool last year (the team average was 0.52788):

Suarez	0.62686
Sturridge	0.60947
Sterling	0.56348
Coutinho	0.54459
Gerrard	0.53748
Henderson	0.52640
Allen	0.51978
Johnson	0.51628
Flanagan	0.51585
Skrtel	0.51147

This basically means that Suarez produced a higher quality result (goal or assist) 62.686% of the time, that shouldn't be much a surprise.