The Serbian manager leaves the Hornets, with Quique Sanchez Flores arriving in his place.
The 18-year-old will remain with Les Verts until 2018.
The defender signed from Sporting Lisbon last summer and saw plenty of game time in his debut campaign.
The Republic of Ireland Under-19 international captained Villa's Under-21s for most of last season.
Barclays will continue the first-quarter’s 'strong' performance through the rest of the year as the bank shrinks its securities unit, CEO Antony Jenkins said.
Goldman Sachs is in talks to pay $2bn to $3bn to settle a probe into its sales of mortgage bonds leading up to the financial crisis, according to a person with direct knowledge of the situation.
When people say there is a revolving door between the Securities Exchange Commission and Wall Street, they don't usually intend it as a compliment.
Lloyds Banking Group has docked £350,000 from the bonus of its boss António Horta-Osório after being hit with a £117m fine for unacceptable handling of compensation claims for payment protection insurance.
The former loanee combined with his fellow midfielder during the Premier League run-in to help save the club from the drop.
The Dutch legend is set to remain Ajax boss for at least one more season.
Highland Capital Management asked a Texas judge to order Credit Suisse to pay the debt manager its losses on a $250m refinancing of a shaky real-estate development
Royal Bank of Scotland could pay as much as $4.5bn to resolve claims of misconduct in its handling of U.S. mortgage securities, according to Bloomberg Intelligence.
JPMorgan’s $500m settlement with pension funds over Bear Stearns’s sale of mortgage-backed securities was approved by a federal judge.