Pitt the Elder is one of the greatest statesmen of Britain in the 18th century.
Yet curiously, his time as Prime Minister, from 1766-1768, was a failure. One of the hallmarks of his ministry is the Townshend Acts, which worsened the relations between Britain and the American colonies. Townshend was a Pitt appointee.
With a POD from his resignation from the Commons and being made Lord Chatham, make his tenure of Prime Minister a success, so it would compare favorably to that of his son, Pitt the Younger.