There can be objectives such as developing young talent or abstract achievements like changing the atmosphere within but when all is said and done a managerial reign at a club like Manchester United can't be classed as a success without trophies.
Even if championships and tournaments are won it isn't a guarantee that things won't go up in flames and end disastrously. But as Mauricio Pochettino discovered during his excellent spell at Tottenham, there will always be a black mark against your brilliant work at the top level if you don't have a medal to show for it.
Erik ten Hag knows this full well and from his first day at United, he made it clear that winning silverware is his primary target. Now his actions are reflecting his words. The Dutchman has made a great start to life at Old Trafford. For his work off the pitch as well as on it.