 Stuart Ayres was appointed to succeed Roberts in his Fair Trading portfolio.Following the resignation of Barry O'Farrell as Premier, and the subsequent ministerial reshuffle by Mike Baird, the new Liberal Leader, in April 2014, Roberts assumed the role of Leader of the House in the Legislative Assembly, in addition to his Ministerial responsibilities.Following the 2015 state election, Roberts was sworn in as the Minister for Industry, Resources and Energy, and retained his role as Leader of the House.