In a small bowl, combine oats, whole wheat flour, and ground pecans; set aside. In a large bowl, combine half of the cream cheese and the butter; beat with an electric mixer on medium to high speed for 30 seconds. Add brown sugar, orange peel, baking soda, and salt; beat until well mixed. Beat in as much of the oat mixture as you can with the mixer. Using a wooden spoon, stir in any remaining oat mixture. If necessary, cover and chill for 30 to 60 minutes or until easy to handle.