For the 20th anniversary season at Camden Yards, the Orioles and its second-year concessionaire, Delaware North Companies Sportservice, have powered up the local presence at the yard. The new 3-4-5 hitters are Gino's Burgers and Chicken, Stuggy's and Dempsey's Brew Pub and Restaurant, named for and partly owned by Rick Dempsey. The Orioles revealed the new lineup of concessions at Camden Yards at a preview gathering. Also debuting is the Roof Deck, a covered center-field bar area that will be open to all Oriole Park ticket-holders. The views of the field from the Roof Deck, which is adjacent to the centerfield scoreboard, are splendid.