Because I'm totally guilty of this too.

How many times have aspiring authors said to ourselves "I really want to publish 3 or 4 books a year because I can totally handle it!" and then get frustrated when this whole publishing thing takes a wee bit longer than we imagine?

*raises hand* Guilty as charged. Yes, I can write fast. Yes, I've said this before. Do I have the same perception of how much I can output a year as I did when I was querying?

As Whitney would say, HELL TO THE NO.

Anyhoo, go read. Agent Holly says some pretty awesome stuff. 

http://waxmanagency.wordpress.com/2009/10/05/letting-the-market-speak/