What's the next currently undervalued skill set that will help teams gain a competitive edge?
A resurgance of speedy players?
A re-evaulation of bullpen roles, pitching types and roles?
Low cost crafty pitchers instead of volitle, injury prone flame throwers?
I'm just tossing out ideas off the top of my head. What directions do you think teams are heading with player skills, or should be heading, to find new ways to build competitive teams?
Or has everything under the baseball-sun been done?