@DibilsYSWhile it's safe to say that neither have done enough last season(s), I do see Sancho staying and improving. It looks like EtH has lined up a more central role for him, much like he did with Tadic in his Ajax days. Hopefully Sancho can revive himself in a new role, having lost the left wing completely to Rashford and Garnacho, who both provide so much more pace than the number 25. So I still see it as being too soon to give up on the player.
Martial, on the other hand, has been in and out of form for 8 years now, sometimes showing glimpses of good form, then only to return to the sidelines with injuries, poor form or a bad attitude. The good form has always come from starts too, never showing that hunger to come on from the sidelines and change games. Being best from a starting role, but being too inconsistent to maintain one, I find it to be a no-brainer to cut him loose. Inter should be interested in him, and I say sell. Rashford and Højlund will play in this central role, or perhaps Sancho, if ten Hag's experiment with him succeeds. Of course Greenwood too, in time, if the club decides to give him a chance. But even if they keep him on their payroll, I don't see him playing on this side of Christmas.