Felicity Huffman has portrayed overwhelmed mom Lynette Scavo on Desperate Housewives, the bigoted mother of a young war veteran who was brutally killed in a home invasion robbery in American Crime Story, and an astute headmaster Leslie Graham dealing with troubling allegations concerning the school’s basketball team in American Crime Story: Season 2. Now she’s taking on a new role: “girl boss.” Huffman acquired rights to The Iron Will of Shoeshine Cats, the 2009 novel by…