Trossard has been our best player over the past 6 months. I think he should rotate with Jesus and Martinelli, whilst Jesus rotates with Saka, so all four get a significant number of starts throughout the season. I hope Trossard isn't solely rotated with Martinelli as was the case last season when all of our attackers were fit.
Unlike Jesus, he's a decisive finisher and just as creative so I'd be happy to see them rotate. I'd keep Nketiah or Balogun as a third choice.