Re: Is Billy Beane the best GM in Sports?
probably not, no.
I'd go with Pat Riley as I don't see any other GM in sports getting two of the top 3 players in the world at their respective sport(at that time) to sign with their team in the same offseason.
This really is impossible to judge though as no one watches all sports and can compare them all.
Count On Kobe
Credit to DivineDub