We can make europe with KDH and Ndiaye, both are good enough and neither are close to our issues with the team. We can also get better players than both, but they wont be available at the price we got both of them for, nor will they be a guarantee with how we recruited last summer.
I think people are overly critical of both, because in order to overcome the massive shortcomings in other areas of the squad, they have to perform at such a high level. When they dont, people look for players to blame, and dont even take into account how few breaks they got this season due to Moyes unwillingness to rotate players. Lets be honest, both are playing out of position as well.