The forward that should have been up front, either at CF or partnered with Ronaldo, was Jota. That he barely played, and didn't even see the field against France, was ridiculous. Just terrible management.
Playing Ronaldo was a big problem, but Martinez's issues went well beyond that. Portugal essentially played the entire tournament with an isolated forward who could barely run, jump or shoot anymore, to go with passive, slow, shit build-up that was clearly by design. It was maddening to watch. They made it as far as they did on the strength of their squad and soft bracket.