Question 1: What was Jos Buttler's concern regarding his position as England captain after the T20 World Cup?
Buttler feared he could be sacked as England captain following the team's disappointing exit from the T20 World Cup in June.
Question 2: Who has been appointed as the new head coach for England's white-ball teams?
Brendon McCullum has been appointed as the new head coach for England's white-ball teams.
Question 3: How long was Jos Buttler absent from leading the England team, and what was the reason for his absence?
Jos Buttler was absent for four months due to a recurring calf injury.
Question 4: What does Buttler hope to achieve under McCullum's coaching?
Buttler hopes that McCullum's appointment will lead to the most "rewarding" time in his career.
Question 5: What was the outcome of England's T20 World Cup campaign mentioned in the article?
England was eliminated in the semi-finals of the T20 World Cup by India.