IMHO, it'd be much better to have an explicitly adversarial and separately-funded dual-track system at such agencies, similar to how the justice system works.
E.g. FAA-Innovation (responsible only for their goal) makes their strongest case and presents research on why unleaded gas should be adopted ASAP. FAA-Safety (responsible only for their goal) makes their strongest case on why no change should be made.
All arguments and facts are published in public. Then higher-level decision makers arbitrate and make a call.
The root of all evil is that from a career perspective, "defer and take no action" is always safer for individuals in positions of regulatory authority. Worst case, something that's always been wrong explodes, and you blame it on the last person.
In the current blended safety+innovation system, it's too easy to obfuscate intentional inaction in endless "more study is needed" bullshit.
Having written this, it almost seems like too obvious of an idea to even post about...
For example, before they figured out how to sell and onboard SMBs, there was at least three teams working on solving that problem while I was there, including mine.
Once there was a “winner”, that team would get more funding (aka budget) and the people on the other teams tended to be absorbed into the winning team or would be repurposed onto other projects.
This wasn’t a codified, explicit operating system, but basically is how they worked for awhile (but I’m unsure how it works now.) The gist was to hire smart people and let them figure it out.
The exemption for leaded fuel in GA should have expired a long time ago. It's ridiculous that the FAA was allowed to keep punting this issue essentially forever, and the only reason a transition is happening now is because they finally decided to take responsibility for it, rather than because there was any legal requirement for it.
GA flying is important for a lot of industry, and a lot of remote communities. it might have taken some work, but they could have found a way to use unleaded fuel in airplanes in fewer than 50 years.