Workrate & Off the Ball Anomaly

Just browsing through a number of high profile players and checked Ronaldo's stats (roughly start of game, 2011).

His 'off the ball' stat is 17, however his 'workrate' only 7.

I assumed 'off the ball' meant the players work effort when his team didn't have possesion, ie closing down opponents etc, however you'd then think their 'workrate' would be comparable.

I'm obviously wrong given the stats above, but why?

Thanks

Off The Ball is the player's attacking movement when he doesn't have the ball. Basically how well he gets into dangerous attacking positions during a game.

I think such a huge disparity in these numbers is a little odd, but I take 'off the ball' to mean movement off the ball when his team HAS the ball, whereas I guess 'workrate' would apply mostly when not in possession.

Off the ball is the attacking movement of a player when a teammate has a ball, high means he has good movement and finds space.

Work rate covers how hard a player works on the field when both defending & attacking.

Thanks all, makes sense now you explain it.

To make it even easier:

Off the ball is basically the opposite of positioning. Positioning is used to determine where you are when defending, off the ball is used to determine where you are when attacking.

In my experience, a striker with a good work rate will chase after the 'hopeless' balls, and put in more of a defensive shift, as opposed to a striker with a poor work rate.