As you will see, these figures can vary dramatically. The idea then, is to maximize your production by paying as few challenge game dollars for each dollar of rotisserie valuation as you can. A super low relative yield figure does not always mean the player is a wise choice and a high figure does not always mean he is a bad choice. Maybe, maybe not. Let's look at some other aspects of the national challenge games that should have an impact on your decision making.
Consistency is everything.
Replacing one or two under-performers may be possible but not four or five. Consult the Forecast Risk column of Baseball HQ's projections to get an idea of exactly how much risk you are taking with each player. These indicators are based on historical output and uncertainty about playing time and give you an idea of the reliability of the projection. While a player coming off of an injury may have an enticing relative yield, the risk incurred may be more than it's worth. It is generally a good idea to choose a more consistent player over one with a slightly lower relative yield.