They both have the same problems: strikers who can't strike being foremost among them. Rashford was good for the occasional goal, Rasmus in Europe as well. ETH had deficiencies in his squad through injuries and players simply proving not good enough, and those deficiencies were addressed through the signings of DeLigt, Yoro, Ugarte, and (sadly) Zirkzee. Zirkzee is a dud, along with Antony and Malacia. Injuries to Shaw and Mount also stymied ETH's plans. Had both of them been fit, we would be transformed. He was given/saddled with the Old Man Ronaldo, Casemiro's ghost, and gave Sancho enough rope. If they had worked out, again, different team.
Cut to: Amorim. Still has the same striker, Rasmus, who's got the yips in front of goal. Rashford is gone. Zirkzee, the nominal reinforcement, is not of the required level. So still no goals coming from the forwards. Amad is saving Amorim's bacon thus far, but ETH was the one who brought him through. Now Licha is toast for the next year if not forever, and Amorim will have to deploy Maguire, DeLigt, and Yoro as a back 3, of which only Maguire seems comfortable playing, although his lack of everything but heading the ball is a serious drawback. We brought in a wingback and Heaven to save our asses. Just like Zirkzee and DeLigt and Ugarte before them.
Yet in this new system, all of the reinforcements of the last few windows are misfits. And we are broke. Ten Hag gets blamed for everything including things outside of his control, but Amorim has apparently been given a get out of jail free card that absolves him of his terrible team selections and in-game tactics. It's one set of rules for ETH and a different set for RA, when in reality they both have been poor, but Amorim has been much worse.