GLENDALE, Ariz. — Los Angeles Dodgers manager Don Mattingly had been discussing the prospects of James Loney becoming a batting champion when the conversation with reporters turned. Showing a big grin that revealed a set of braces that sometimes affected his speech, Mattingly gave a good-natured ribbing to Los Angeles Times reporter Dylan Hernandez. Mattingly, entering his second full season as skipper, was making an effort to show a little more personality. Perhaps he was filling the void left by former Ozzie Guillen, whose former team the White Sox also train at Camelback Ranch. about that concept, Is that right, Donnie Baseball? While knowing what "gregarious" means might be overrated (even though he was kidding), actually acting gregarious can be a plus over the long, long haul of the baseball season.