Which employee manage most number of peoples? List employee's first and last name, and number of people report to that employee.
SELECT T2.first_name , T2.last_name ,  count(T1.reports_to) FROM employees AS T1 JOIN employees AS T2 ON T1.reports_to = T2.id GROUP BY T1.reports_to ORDER BY count(T1.reports_to) DESC LIMIT 1;
employee who manages the most number of people refers to MAX(COUNT(reports_to)); list employee's first and last name refers to first_name, last_name; number of people report to that employee refers to COUNT(reports_to);