You can't equate the "relative lack of workrate" between Ronaldo and Martial. Ronaldo is literally the most useless player in Europes big leagues - in the bottom 1% - with his work rate. He does nothing for hold up play, he doesn't do much for link up play. He takes up the same positions that Rashford does despite being asked to be a CF (hurts Rashford), and because of who he is, Bruno goes into little brother mode just pumping it to him. He ends up being a vacuum for all attacking play. And he's not good enough anymore for that to be worth it. The others just play better around Martial, much better, which is better for our team. Off the ball, Martial isn't a work horse but he's fine, and fine is a hell of a lot better than bottom 1%.
Theres a difference between Martial asking to leave because he wasn't being used, to Ronaldo asking to leave because he believes at his current age that he is still too good for United, which is bollocks. Nobody better is remotely interested in him, because he just isn't that good for a team anymore. Yes, he's still a good goalscorer. But you need everyone involved in the team to create chances and play dominant football. Ten Hag's system is much more likely to work with Martial being part of it, than Ronaldo being seperate to it and just being asked to be a poacher and the rest of the team having to cover for him. And that's the key. He's a 37 year old ex winger being played as a striker (and agree, he's never been a good striker), in the hope that he can just score goals to overcome the negatives he now brings, ignoring all system requirements.
On Martial - he hasn't been fit since that season is the main thing IMO. Its very much last chance territory, but if he can bring the 19/20 form back to this season, then he is FAR better than Ronaldo for the team. As a team, we will score more goals, even if individually Martial does not score more than Ronaldo.
