On October 3, 2007, Blair entered into an agreement with Simple Construction Company to build a shed at the back of his yard, to be completed by November 14, for the amount of $19,000.On October 7, 2007, Blair calls the Simple Company to state he changed his mind because he doesn't want to spend the money. Simple sues Blair, and Blair uses the defense of lack of consideration. Please analyze whether consideration has been given in this case.