Mel recently received a 30-day letter from the IRS. Although his tax return being audited has several potential large issues (potential tax consequences of $70,000 - $80,000), the IRS agent auditing his return only identified one item that will require a modest adjustment of $10,000. Mel feels strongly that the $10,000 adjustment would not hold up in court and was surprised that the IRS agent did not identify some of the other potential larger issues. What are Mel's choices with respect to the 30-day letter and what factors should influence his decisions?