And what would it take for you to "see how" Russia needs to start destroying some roads, using more missiles, bringing in more men and winning some battles? What would have to happen for you to admit that what they are already doing is not working?
They need to bring in more men yes. They use plenty of missiles, drone strikes, and air strikes. They also win more tactical battles, inflict greater casualties but the Ukrainians vastly outnumber them, at least over 20,000 near Lyman alone, and the Ukrainians could absorb the casualties. So even with tactical superiority, they lack numerical superiority. What I see they're doing is actually remarkable for their numbers, but it's time they need to go at it like the old Soviet Union. Right now the Russians are fighting this like the Americans in Vietnam War, counting a superior casualty ratio, doing all the bombing and air strikes, and winning tactical battles using superior firepower, but perhaps they need more boots on the ground like the way the Chinese Army did in Korea to force the US Army it's longest retreat or the Russians risk losing it like the US did in Vietnam or forced into a stalemate like in Korea. Right now it seems like the Russians are fighting like the Americans and the Ukrainians are fighting like the Chinese Army in Korea.