Connors and Ferris entered into a contract in which Connors was obligated to deliver certain goods to Ferris by March 8. On March 1, Connors told Ferris that he would not deliver the goods called for in the contract. The reason for refusing to deliver the goods was simply a change of mind at this time. Connors told Ferris that he would think more about it and possibly deliver the goods sometime in the future. Can Ferris successfully sue Connors immediately or must he wait to see what Connors decides to do?