According to several newspapers, it is said that one of the reasons the club management still trusts Ten Hag to coach Manchester United is because Ten Hag will try to play young players from the academy and build a squad with a good basic foundation. There are many talented young players from the academy and if we look at Manchester United's current performance, I think there is no problem with giving young players from their academy the opportunity to join the United squad and this will add to their experience and their mentality to compete in the EPL.
If it is the reason to keep Ten Hag, it means Man United never wants to win EPL under Ten Hag management. They only want Ten Hag to build Man United future with young players now. This may be the reason why Ten Hag didn't extend the contract of main players such as Casemiro and Varane. Although those players contributed well for Man United, but they have no chance to play again with Man United. Does Ten Hag will replace the position left by Casemiro and Varane with the players from Man United academy? 
It is funny that Man United management cares with their young players from academy. In the past, Man United easily sell their young players from academy, Pogba is one of the perfect example. Man United will be interested in the players when they are already successful in other clubs. You must remember that Man United buy again Pogba from Juventus with huge transfer fees.
Anyway, I hope Man United have no problem with their financial. I am a bit worried that Man United will experience the same way as Barcelona.