Achievement can be considered an important factor for motivation.  If one desires his team to be the best, the goal of high achievement can be a powerful motivation.  But if the attitude is more along the lines of ‘it doesn’t matter if you win or lose it’s how you play the game,’ achievement might not be the greatest motivator.
     The idea of achievement affecting motivation has been a popular idea.  Tests have been administered to rank how important achievement is to an individual.  Sometimes though, achievement isn’t the greatest factor for motivation, but rather a lack of achievement, or failing, produces the motivation to stay out of the rut.
     With this in mind it is not surprising that people often choose difficult tasks.  Sure, they might fail, but it was a hard task to begin with.  If they succeed they have accomplished a great task.  On the other hand easy tasks produce little esteem if accomplished and produce dreaded results if failed.