In 1901, Greet leased the Savoy Theatre from Helen Carte, the widow of Richard D'Oyly Carte. He then managed the D'Oyly Carte Opera Company's revival of "Iolanthe" at the Savoy and its production of several new comic operas including "The Emerald Isle", "Merrie England" (1902) and "A Princess of Kensington" (1903), both at the Savoy and on tour. At the same time, he also leased the Lyric Theatre in London, producing "Mice and Men" in 1902, "The Light that Failed" in 1903 and the musical comedies "The Medal and the Maid" (1903), and "The Duchess of Dantzic" (1904). He also leased the Comedy Theatre in London, where he produced the hit musicals "Monsieur Beaucaire" and "Morocco Bound", both in 1902.