9) Bebe
Another unsurprising name set for the chop by van Gaal is one of Sir Alex Ferguson’s biggest transfer mistakes of recent times. Portuguese forward Bebe was signed on something of a whim after the former United manager was impressed by just a few videos of him playing. Bebe has without a doubt been a spectacular flop since joining the club, spending most of his time out on loan as they have struggled to offload him to any takers on a permanent deal.