That's his game to be fair. Was at Sporting, and has been at United. He's a midfielder in name only. That's not a criticism.
What Bruno does really well, is producing a high number of opportunities. That enables him to skip some of his off-the-ball responsibilities, because whoever is lying deepest in front of the opposition defence has to follow him around. Give him time AND space and you're going to pay. United don't exploit that space he makes anything like well enough.
Once Cavani and Ronaldo were on the pitch he dropped deeper, purely because there was always a body in space he would otherwise have occupied. He looks to find those areas wherever he can find them - pound to a penny he hasn't been told to drop deeper because he's playing too far forward. He plays where Ole wants him, and this was just a by-product of taking a risk with the sub.
Something I haven't seen any outlets pick up on, is why Ronaldo is capable of tracking back in the last twenty of a game when he's switched wide, but won't do it from the front. You can't bang on about what a great athlete he is and in the same breath give him a pass on his pressing because of his age. He's either fit enough, or he isn't. Those last twenty suggested there's a more-worrying managerial problem; that perhaps he doesn't think it's his place to lead that pressing from the centre of the park. If that can't be sorted, then Cavani should be given the starting nod. Reputations bedamned.
Over the past few games, through a variety of different circumstances, the one positive has been the revealing of United's best starting XI. Such a thing exists.
That's not necessarily the eleven most-talented individuals, but it's the most-cohesive and dynamic unit United can put out. It's a big bonus for any squad to know its best eleven and to start from that template. It's not going to happen, but if Ole really wants to make good on his endless harping on about United's best traditions, the place to start is by making that eleven the foundation. United's best traditions meant going to toe-toe and often coming out on top in the toughest games, and winning more than most of the rest. You can't go toe-to-toe with bang average sides, drop points to sides not much better, be comfortably beaten by sides not much better than that, then go pointing to your last-minute win as if it was the Nou Camp in 1999.