Members of the Mechanical Contractors Association of America will hear some heavy-hitters speak about the “challenge of change” at the upcoming annual meeting, Feb. 25-March 1, Orlando, Fla. - keynote speaker General Colin Powell, comedian Bill Cosby, ABC Sports’ college football studio analyst Terry Bowden and celebrity chef Tony Bourdain, to name a few. Other presentations cover green building, strategic planning, and the future of marketing. For registration information,