I know better than to get into a debate about Sissoko with you But he has created chances from out wide cutting the ball back, and my memory isnt the best but he definitely had the assist for Lamela away to West Ham the other season from out on the right hand side and pretty sure he's had one or two others from that position too....I dont know about "good fit", but I think its the sort of thing that would get the most out of him.
He cant cross or pass for brick but he would at least do better with a simplified job, and has shown he can get up and down. Could be useful for tracking Lacazette/whoever they play out left, usually a threat