>Off the Beaten Path>I really embarrassed myself...
Related to "paying for achievement", I want to mention that it isn't something we did all the time, but it was/is effective when it's offered. Sports is so much about confidence. If someone needs a little extra motivation to get over the hump, then so be it. Once they see that they can "do it", it becomes easier to repeat.
Ever notice how professional athletes often turn in great performances the final year of their current contract in anticipation of the next deal? What works for children also works for adults!