How do you follow someone who's been on the job for 21 years? Margaret B. Davis is about to find out. On Nov. 1, she takes over the leading role at the Maryland Hall for the Creative Arts, the center of the Annapolis arts scene, from Linnell Bowen, a woman described as "a force of nature." But Davis has her own impressive credentials. She previously was the head of the Marine Corps Scholarship Foundation, where she doubled revenue after taking over in 2009. That work was important to Davis, who recently moved to Annapolis, but the mission of the arts center is, too. "This is what I am called to do," she says, "to help bring in great art and connect it to the citizens and the public."