Sometimes slow is good
In 1968 I was a re-purposed ground-radio tech doing what's now called combat control* in Vietnam. Daytime airstrikes were done with F-4, F-100 and A-1E aircraft. The latter, callsign "Sandy," were leftover WW2 recip-engine planes, but they were our favorites. Not out of nostalgia, but because at their slower speeds they had a better chance of hitting the target than the faster jets. Not that there was any fault on the part of the jet pilots, mind you.
Combat controllers now have access to laser guidance, meaning tactical air support can come from aircraft flying far above the battlefield. That's great, until the laser system goes titsup or you just don't have one. Here's where the A-10 comes in. At night, close air support came from even older planes, C-47s equipped with Gatling guns, the Spooky gunships.
The U.S. Air Force brass may feel the roles once filled by A-1Es and C-47s can better be accomplished with drones. That doesn't mean the F-35 is a good idea for other roles. "Paperweight" is a good epithet. No matter how advanced the thing is, if you can't reliably get it in the air you are screwed. Well, you aren't because you're not going anywhere. The guys on the ground are screwed. Advanced technology can solve a lot of problems. But when it comes to down-and-dirty warfare, sometimes less tech is more. As in environmental science and investing, diversity should be a major element in strategy.
*Today's combat controllers are spec-ops trained and I bow to them. Their advanced training is a good use of the defense budget. There were many days and nights in 1968 that I would have liked to have some of that training!