His younger brother might end up being a pitcher who makes it all the way to the big leagues. He is a serious prospect in this year's draft. His name is Cole Sands, and is a RHP (not a lefty) at Florida State. Pretty talented. I have this weird theory (untested, but I need to study it more) that younger brothers of prospects or younger siblings in general tend to develop into better players/prospects. The younger brothers get to play with their older brothers/friends and watch and observe them. My youngest brother is the tallest and probably best athlete in the family. I haven't studied it too much, but it seems to hold true in many instances. Theories are better when they are based on data. Your theory has... a lot of holes. Well that's why it's a theory and not a rule. Even rules have exceptions. I observed a little microcosm of this personally. For a couple of years my son and I lived with my sister and her family. My nephew (5 years older than my son) and his friends were big soccer players and they often let my son play with them. My son was eventually asked not to return to his house league soccer team because he was too good. It had gotten to the point where they were limiting his playing time because he was scoring too many goals. We later moved and he wasn't playing as often with my nephew and his friends and he eventually regressed to his peers. The sibling aspect isn't the crux, it's the exposure to advanced competition that the situation can result in. Obviously if you have an Arnold - Danny Devito or Jose - Ozzie situation it won't matter. But there are several reasons why this can lead to better development. I know agreeing isn't as sexy as being contrarian, but there you have it.