Who was the british army officer that replaced james abercromby as supreme commander in america during the war?

During the French and Indian war, James Abercrombie is replaced as supreme commander of British forces after his defeat by French commander the Marquis de Montcalm at Fort Ticonderoga. Shortly after, in 1759, Quebec surrenders to the British after a battle which sees the deaths of both James Wolfe and Louis Montcalm, the British and French commanders