Every year players come out of the woodwork and start hitting or pitching like superstars. Some players fizzle after a week, a month, or half a season. Others, like Ryan Braun and Albert Pujols, never stop. However, every year fantasy baseball managers hem and haw over whether or not a player is worth picking up, trading for, or keeping given a sample size of statistical data. Everyone is different in their evaluation of how much of a sample set is needed to determine if a player has arrived or not.
If the sample size of statistics is favorable, how long does it take for you to declare that a player has become 'for real'?