I don't feel sorry for them. Other clubs have been through the same thing.
It all started, imo, when they let Pochettino go to Spurs. Had they told him that he's under contract and they want him to see it out, he could have put a brave face on and brought in some new players, meaning some of the other players might have stayed too (even if Pochettino only stayed for another season).
The way it's happened, it's seemed like "He's leaving? I'll leave too". (Though very simplistic).
The fans more than the club. It is pretty heartbreaking watching your crown jewels sold off to "bigger" clubs safe in the knowledge you wont seen anything like the £100m you've recieved in transfers spent on replacements.
Southampton are shafted this season.