If we are to avoid a lost decade and a future calamity created by inaction on entitlements and government growth, this nation needs a team of turnaround experts. Mr. Romney has promised to create a Cabinet of private-sector leaders focused on strengthening the country’s business climate and making it more competitive. He and his running mate, Wisconsin Rep. Paul Ryan, have dared to put forward ideas to preserve Medicare for current beneficiaries and reform it for future recipients, and they vow to work with Congress to prevent the program’s collapse.