Bit of a weird one considering the Sancez-Lukaku link up has been improving a lot recently, with Sanchez setting Lukaku up with nice far post crosses.
In any case I think if we had a decent right winger providing width down that flank with Shaw continuing his form down the left, that would free up either Martial or Sanchez to play closer to Lukaku and therefore get more goals for themselves while also providing more ammuniation for Rom.
Currently there's too much onus on Lukaku to score and if he doesn't we usually fire blanks and lose the game.
Maybe then we should try Sanchez on the right, where he has actually played before and since he's not setting that left wing on fire, or even on sparks, it might be worth a shout. The fact that it still hasn't been done after all this time, I can't imagine Mourinho hasn't considered it so the question is whether Sanchez made it a stipulation in his coming here that he would not play on the right.
Rom is likely going to do better with service coming from the left rather than the right, but with a Shaw-Martial left wing creating danger and possibilities for Lukaku, that gives space for Sanchez to attack from the right.