Rashford and Martial are our two definite starters. After that we've got Lingard, James, Greenwood, Mata, Gomes, Chong, Pereira and, at a pinch, Dalot (also Sanchez if he doesn't leave). Two of those will start, the others will be our options off the bench. Actually we may end up with only one of them starting if we end up playing a third midfielder with Pogba released into a more offensive role.
We do have the pure numbers, the problem is that there are serious question marks over every one of them. Lingard is the only one at his prime and we all know the weaknesses in his game that he does have alongside his strengths. Mata and Sanchez are years past their prime and have been inconsistent (Mata) or straight up terrible (Sanchez) for years. The others are all youngsters, with the ones with the highest potential all being the youngest of the group who may not be physically ready to play a lot of games.
What we've done is risky, but it's the kind of risk that I'm tempted to say I'm ok with in the short-term. It's the final opportunity for the likes of Mata, Lingard, Pereira and possibly Sanchez to prove that they can contribute, while it's also an incredible opportunity for Greenwood, Gomes, James and Chong to show what they've got.