In a medium bowl combine flour, oats, brown sugar, salt and soda.
Add softened butter and stir until it makes crumbs.
Press 3/4 of the crumb mixture into the bottom of a large cookie sheet.
Bake at 350 degrees for 10 minutes. Remove from oven and pour caramel evenly over crust. Sprinkle with chocolate chips, pecans and remaining crumbs. Return to oven and bake for 15 minutes.