You Need Better Senior Software Developers

The single biggest issue I've seen is often a trend towards only hiring people using the exact tooling that a given manager and other members have been comfortable with. This has made it nearly impossible to hire say, a Jr-Mid developer with C#, ASP.Net MVC and React/JavaScript. This is as opposed to hiring for the harder skill, favoring those with demonstrated history of learning new (to them) tech.

I tend to favor people who have worked on personal projects and taken the time to learn new/different tech. If there's even a 50% overlap with the existing tech, even better. But it's actually really hard to convey this to either recruiters or upper management.

The worst still is dealing with other Software Architects in the org who pretty much refuse to try anything too different.