Perhaps not perfect substitutions, but business acumen is seeing a solution that's 90% of what you're looking for is more than adequate. It seems unlikely the organization identified 162 truly novel problems. It appears some needless reinventing of the wheel may have occurred. It's a common problem that certainly isn't exclusive to Uber.

https://en.wikipedia.org/wiki/Not_invented_here

Licensing can also be an issue sometimes.

Tell me about it. Oracle wants a pound of flesh for a few licenses, and Windows, VMware, and others can be onerous (though I'll concede Windows is getting better)