Major League Baseball has proposed expanding the playoff field from 10 teams to as many as 16 for this year and next season. Now comes a proposal certain to truly upend the sport: Up to 16 playoff teams. But to some, an expansion from 10 playoff clubs to 16 would mean the end of civilization. I dont think many players would be, either.To say that 16 of 30 teams are playoff teams, he said, youve got to raise the bar higher than that.Other sports are accustomed to a plethora of postseason hopefuls. Veteran skipper Bobby Valentine is OK with extra playoff teams -- with a caveat.