That goals to minutes ratio, you have to take it in context- Cisse is used where he is most effective, against slow defenses, and at an outlet when we are under the cosh. He wouldn't be able to replicate that ratio if played for 90 mins. And he doesn't work for the team as much as Moro. Last time I saw him come on late in a game, we were under pressure, all he needed to do was run back and forth and put the defenders off. Tire himself out for ten minutes. He was still prowling around the centre circle ignoring the defenders, waiting for a perfect ball to run on to. The one time he charged down a defender it was extremely effective due to his pace, but he only did it once. Either Rafa tells him not to pressurize defenders or he's ignoring team commands, and the former seems unlikely.