Question: What did one member of the third set of co-anchors for "American Morning'" specialize in? 

Miles O'Brien (born June 9, 1959) is an independent American broadcast news journalist specializing in science, technology, and aerospace. <SEP> George Holland (1918–unknown) was an Australian tennis player.  In 1938, tennis legend Don Budge said that, among the younger and less prominent players he had seen on his trip to Australia, Holland had the brightest future.  "I have selected him after careful study of most of the leading young players.  I watched many of them in match play during the Australian championships when they did not know I was about" said Budge, in an article in The Sydney Morning Herald on 14th February 1938.  Budge went on to describe Holland's game by saying "he has a forceful service, hits his ground strokes with freedom and likes to chase them to the net, where he volleys and smashes severely, with just a dash of drop-volleys thrown in occasionally.  And he possesses a splendid temperament.  I summed him up as a clear-thinking lad with a heart as big as his happy outlook on life".  George Holland made his debut in the Australian championships in 1937 and lost to Arthur Huxley in round one.  At the 1938 Australian championships, 19 year old Holland beat Huxley 10-8 in the fifth set in round one.  Then in round two Holland caused a big upset by beating reigning French champion and third ranked player in the world Henner Henkel after losing the first 2 sets.  From the third set onwards, Holland "followed everything to the net and made some glorious volleys" and was in command of the match.  "His groundstrokes had more penetration, he rarely missed his first serve, and he treated Henkel's cannon-balls in cavalier fashion to take command of the attack" according to The Argus.  In the quarter finals, Holland lost in four sets to Adrian Quist.  In the first round of the 1939 Australian championships, Holland lost in round one to Vivian McGrath in straight sets.  During World War 2, Holland reached the rank of Lieutenant.  After the war, Holland resumed his tennis career. <SEP> The Morning Exchange was an American morning television program that aired on WEWS-TV (channel 5) in Cleveland, Ohio from 1972 to 1999.  The program is widely regarded as one of the most successful local programs in the history of U.S. television.  On a typical day in the 1970s, over two-thirds of all television sets in the Cleveland market were tuned to "The Morning Exchange".  In 1975, ABC (of which WEWS is an affiliate) recognized the show's success and decided to adapt "MX" for a national audience – creating "Good Morning America". <SEP> American Morning is an American morning news television show that aired on CNN.  It ran from 2001 to 2011.  "American Morning" debuted on the day after 9/11, five months earlier than planned, replacing "CNN Early Edition".  It was anchored by Paula Zahn and Anderson Cooper at its inception.  Cooper was replaced by Bill Hemmer in February 2002.  They were replaced by John Roberts and Kiran Chetry due to poor ratings.  After Roberts and Chetry left in 2011, the show did not have a permanent anchor team and was shelved by CNN at the end of the year.  The show's next permanent co-anchors were Soledad O'Brien and Miles O'Brien, who fronted the show from 2003 to 2007.  "American Morning" was replaced by two new programs, "Early Start" and "Starting Point".