The solution usually isn't "better people." It's engaging people on the same goals and making sure each of them knows how their part fits with the others. It's also recognizing when hard stuff is worth doing. Yeah you've got a module with 15 years of tech debt that you didn't create, and no-one on the team is confident in touching anymore. Unlike acne, it won't get better if you don't pick at it. Build out what that tech debt is costing the company and the risk it creates. Balance that against other goals, and find a plan that pays it down at the right time and the right speed.
As someone who has worked in IT support I have seen users habitually click away clearly formulated error dialogs that told them exactly what the cause of their problem was and how to address it. Only problem? They did not read it, as became clear when I asked them what it said.
I have had people who I repeatedly had to explain the the same thing, made sure they got it by having them do it twice and a week later they would come again with the same question like sheep, not even aware they asked that one before.
Some problems are communication problems. Others are actual people problems that could indeed be solved by getting better people. Anybody who says otherwise is invited to do first level support for a year.