and how many playoffs have the Mets been to with those guys playing? This can go on and on, there are multiple examples of young guys being brought up and performing well, but they are not the same situations as the Astros are in. The Astros can't afford to let a player develop in the Majors unless absolutely neccessary (Example: Willy Taveras) and this year, to this point it's not absolutely neccessary for Pence to be on the team. You are over simplifying the situation.