A golf pro entered into an employment contract with a country club to be its golf pro. The agreement specified that the golf pro would run the pro shop and provide private instruction to members from April through September of each year for the next five years, at a monthly salary of $5,000, plus instructional fees. During those months, the club's other instructor was playing on the professional tour and was unavail­ able. On March 15, the club's manager received an e-mail from the golf pro, stating: "Made the final cut in Sarasota Winter Open. May not be able to get to club by April 1. Could be delayed until 5th if playoff necessary." The club's manager asked his attorney whether he should bring an immediate action against the golf pro for breach of contract. Which of the following is the most accurate advice for the manager?