Answer
Catania was the club Montella managed before moving to Fiorentina in 2012. He had been in charge of the Sicilian club since 2009, and led them to promotion to Serie A in 2010. However, they were relegated back to Serie B in 2011, and Montella left the club at the end of the season. He then took over at Fiorentina, where he has remained ever since.