I'm interested in item 2 (things that succeed do so quickly). Is this true? Edit: (I should note that I'm more interested in this observation as applied to peo

I'm interested in item 2 (things that succeed do so quickly). Is this true? Edit: (I should note that I'm more interested in this observation as applied to people than I am applied to products, though. Are great salespersons great on the first day, or is it possible that some people just need time to get used to the environment?)