Angels star Shohei Ohtani could be leading a baseball revolution -- so says MLB postseason legend David Eckstein. We spoke to the '06 World Series MVP after he paid a visit to Halos spring training ... and he told us Ohtani -- the team's huge offseason signing who can pitch, play outfield and DH -- is the real deal. But the more interesting takeaway -- Eckstein told us Ohtani's just the beginning of a new wave of super-athletes who can play both ways!!