Non-starter, what you mentioned is what single seat fighter pilots do every day (and more when we're not talking about low threat CAS, which apparently is the only mission that exists in the AF according to BOPS.net). Mistakes are made, but significantly less than successes. Strikes do it well too, they also fuck it away (just like single seat guys). The point is, at least in the fighter world, there is not a need for a second dude, with the exception of the Strike which was specifically designed for a WSO. We've been single seat weaseling since the 90s and FAC'ing single seat since Vietnam, extremely effectively as well. It's a non-issue in the fighter world - this is not chest beating, it's simply reality. To give the F-35 a 2nd seat would be a huge mistake, waste of money; essentially no gain for a whole shitload of pain.