Herrera was great but, the club is trying to resolve issues around wage structure. This is something that needs to be sorted, and unfortunately Herrera looks to be the collateral damage. He wore his heart on his sleeve every time he played and for that I commend him. But he's chosen to take one more massive contract for the twilight stage of his career, so I'm not losing too much sleep over his departure. We also don't know how long a contract he's signed with PSG - if it's 5 years at stupid money then I'm not surprised. Herrera will be a Matic styled liability within 2.
It's all speculation - but Jones and Young are squad players that have been pushed beyond their talent level. Chances are they actually have some of the better attitudes in the team. I think they're probably a positive influence at training and in the dressing room. The problem is their footballing talent has been put under a microscope because we don't have anyone else. They're squad players, so hopefully their salary reflects that and we can put a fair few layers of quality and youth between then and the starting XI this transfer season.