Didn’t Churchill have a high enough opinion of Chamberlain to put him into Winston’s wartime Cabinet?
Winston Churchill then took the position of Prime Minister, he still kept Chamberlain in the Cabinet, he died later that year a sadly disillusioned man. Just an opinion of mine, but Chamberlain was a quintessential English gentleman. He thought that a head of state should be a man of his word. He could not conceive that Hitler was an opportunistic liar.
Churchill however had lived a life in the army and was a bit of a scrapper. He called Hitler "that guttersnipe".
In the first volume of his history of World War II, The Gathering Storm, Churchill is not particularly laudatory of Chamberlain's role in the run-up to the war. On the other hand, Chamberlain assumed the duties of Prime Minister whenever Churchill's travels absented him from the office. If Churchill had really despised him, that would probably have been somebody else's role.
But Chamberlain -- unlike many others in both Britain and the US -- fully admitted that the Munich Diktat and his attempts to "deal" with Hitler were mistakes.