Definitley needs replacing but I don't think we should spend 50m plus on a replacement eg: Costa. He's a massive risk though every time we step on the field.
Not kidding we need around 5-6 actually good players to replace the dead wood that has accumulated and started to rot. AWB, Maguire, Casemiro, Martial, Rashford even Fernandes all need to go. We can make some good money off the latter two.