SELECT "Institution" FROM table_28522 WHERE "Joined" = '1996-97' AND "Left" = '2011-12'
What school joined the conference in 1996-97 and left it in 2011-12?
CREATE TABLE table_28522 (
    "Institution" text,
    "Location" text,
    "Founded" real,
    "Type" text,
    "Enrollment" real,
    "Joined" text,
    "Left" text,
    "Nickname" text,
    "Primary Conference when joining the MSFA" text,
    "Current Primary Conference" text
)