At this point we are now at probably the most important point in any of the components of skill. This is adjustments. This component however is different then the others. While they refer to your actual skill of accomplishing your goal, being able to adjust is dealing with your potential to increase your skill. It is the process by which we gain our knowledge and is done retroactively or is a precursor to the attempt of accomplishing the goal. If for example two people eat a sandwich without making a mess 95% of the time we can see that if one of these people is more open to realizing that he could use a napkin then the other person it is more likely that he will become more skilled at not making a mess while eating a sandwich.
When we extend this to MMOs we can see where other peoples shortcomings often are. Many people who raid know what to do just aren't able to do it. It also works both ways. Plenty of people are able to Raid just don't know how to do it. There are also people who never seem to learn to play better. This can either be an adjustments problem or a knowledge problem. The easiest way to tell is simply to tell them how to do it. The guy who has an adjustment skill problem will do better when you tell him what to do. The guy with a knowledge skill problem is hopelessly lost. The guy with an execution problem needs time to work their adjustments. As for the guy with a weird perception of their goal. You should avoid them at all costs.